[Moto G Q&A, Help & Troubleshooting] wrbl:
Okay, after some digging through the interwebs I managed to get to the moment when my phone was visible as "Qualcomm HS-USB QLoader 9008" and managed obtain an gpt file that flashed correctly.

GPT flash cmd line:

C:\Users\Jerzy Wywiał\Desktop\MotoG\mfastboot-v2>mfastboot flash partition gpt.b
in

C:\Users\Jerzy Wywiał\Desktop\MotoG\mfastboot-v2>mfastboot flash partition gpt.b
in
target max-sparse-size: 256MB
sending 'partition' (32 KB)...
OKAY [ 0.031s]
writing 'partition'...
(bootloader) This may take a few seconds, if a
(bootloader) different partition table is being
(bootloader) flashed since we need to backup
(bootloader) and restore a few partitions
(bootloader) Flashing primary GPT image...
(bootloader) Flashing backup GPT image...
OKAY [ 0.312s]
finished. total time: 0.343s

C:\Users\Jerzy Wywiał\Desktop\MotoG\mfastboot-v2>

And now everytime I want to flash a ROM the cmd line looks like:

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash partition gpt.bin
target max-sparse-size: 256MB
sending 'partition' (32 KB)...
OKAY [ 0.031s]
writing 'partition'...
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.328s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash motoboot motoboot.img
target max-sparse-size: 256MB
sending 'motoboot' (1953 KB)...
OKAY [ 0.109s]
writing 'motoboot'...
(bootloader) Motoboot: Unknown partition name
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.140s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe reboot-bootloader
rebooting into bootloader...
OKAY [ 0.016s]
finished. total time: 0.016s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>pause
Aby kontynuować, naciśnij dowolny klawisz . . .

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash partition gpt.bin
target max-sparse-size: 256MB
sending 'partition' (32 KB)...
OKAY [ 0.031s]
writing 'partition'...
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.328s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash motoboot motoboot.img
target max-sparse-size: 256MB
sending 'motoboot' (1953 KB)...
OKAY [ 0.109s]
writing 'motoboot'...
(bootloader) Motoboot: Unknown partition name
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.156s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash logo logo.bin
target max-sparse-size: 256MB
sending 'logo' (1060 KB)...
OKAY [ 0.078s]
writing 'logo'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.109s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash boot boot.img
target max-sparse-size: 256MB
sending 'boot' (10240 KB)...
OKAY [ 0.359s]
writing 'boot'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.421s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash recovery recovery.img
target max-sparse-size: 256MB
sending 'recovery' (10240 KB)...
OKAY [ 0.374s]
writing 'recovery'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.421s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash system system.img_sparsechunk.0
target max-sparse-size: 256MB
sending 'system' (259277 KB)...
OKAY [ 8.221s]
writing 'system'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 8.252s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash system system.img_sparsechunk.1
target max-sparse-size: 256MB
sending 'system' (247529 KB)...
OKAY [ 7.878s]
writing 'system'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 7.925s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash system system.img_sparsechunk.2
target max-sparse-size: 256MB
sending 'system' (253343 KB)...
OKAY [ 8.065s]
writing 'system'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 8.112s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash system system.img_sparsechunk.3
target max-sparse-size: 256MB
error: cannot load 'system.img_sparsechunk.3': No error

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash modem NON-HLOS.bin
target max-sparse-size: 256MB
sending 'modem' (47152 KB)...
OKAY [ 1.544s]
writing 'modem'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 1.576s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe erase modemst1
erasing 'modemst1'...
(bootloader) Invalid partition name modemst1
FAILED (remote failure)
finished. total time: 0.031s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe erase modemst2
erasing 'modemst2'...
(bootloader) Invalid partition name modemst2
FAILED (remote failure)
finished. total time: 0.047s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe flash fsg fsg.mbn
target max-sparse-size: 256MB
sending 'fsg' (102 KB)...
OKAY [ 0.062s]
writing 'fsg'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.109s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe erase cache
erasing 'cache'...
(bootloader) Invalid partition name cache
FAILED (remote failure)
finished. total time: 0.047s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe erase userdata
erasing 'userdata'...
(bootloader) Invalid partition name userdata
FAILED (remote failure)
finished. total time: 0.047s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe oem fb_mode_clear
...
OKAY [ -0.000s]
finished. total time: 0.016s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>mfastboot.exe reboot-bootloader
rebooting into bootloader...
OKAY [ 0.016s]
finished. total time: 0.016s

C:\Users\Jerzy Wywiał\Desktop\XT1032_RETAIL-EU_4.4.4_KXB21.14-L1.40_36_cid7_CFC_
1FF.xml>pause
Aby kontynuować, naciśnij dowolny klawisz . . .

Now I'm trying other roms :/ and the slow internet does not help :/ Also the bootloader won't spit out the bootloader unlock info :/