SynoCommunity/spksrc — comment on commit 7bb2f80732e3aee9a4d898b31242047a8a3ef4aa
File: spk/python27/Makefile line 8
By Diaoul:

Freedom to install pure python packages easily without requiring hardcore tweaks or even another python installation. That might conflict with this one by the way.
For example, I use it to install subliminal and try it on my NAS, BeautifulSoup, etc.
Yes that'll be wiped out next update but by pressing the "Update" button the same person that install a python module with pip will know what he is doing.

I agree, that's more an "advanced user" feature than a "simple user". Might be usefull for some users without the mess installing another Python.