It probably won't affect their future launches too much, but I do think they're going to take the feedback to heart.

I imagine they've got the next iMac lined up, and the Mac Pro with Skylake-E / DDR4 and some 14nm AMD chips with HBM2. The iMac today is already a Skylake product, so the things the next one needs for feature-parity are TB3, USB-C, wireless keyboard with touchbar, and a new 14nm graphics chip. Wouldn't be surprised if it also got DDR4 as well. These may come earlier and/or cheaper due to user feedback.

One change I expect that won't be driven much by feedback is price. The thing with releases like the new MBP is they typically command a price premium for a while and are then brought down in price. I'd imagine in a year the 13" MBPs will start at $1299 and 13" touchbar MBPs at $1499, roughly tracking with older prices. As the supply chain ramps up and gets more efficient, the cost of parts will drop. Hitting a target margin is the driving factor in this. Apple really does like new features (like the touch bar) to have broad availability in the lineup as quickly as possible, margins notwithstanding.

Honestly, a lot of the pent up frustration is ultimately the fault of Intel - they didn't dedicate enough R&D on Broadwell to make it a proper next step, they botched the Skylake mobile launch with bad firmware (see: buggy Surface products earlier this year), they didn't include several features important to Apple including LPDDR4 support and DisplayPort 1.3 (necessitating MST Thunderbolt connection for 5k displays) not to mention HEVC encoding, their Core M chips are way overpriced which delays the transition of the MBAir to the Macbook chassis, etc. Not to mention AMD/Nvidia have been stuck on 28nm process for far too long (5 years) due to delays and quality of 20nm process, which necessitated the wait until 14nm parts were ready to do a joint launch with the 15" MBP. It was a confluence of bad timing from third party chip manufacturers.

Also, when Apple launches something, they need them in super high volume. 13" MBPs are the #1 Mac by sales. Many other manufacturers can announce/launch flagship devices distinct from other products in their lineup with the latest chips, but wind up delaying them or just launching in very low volumes. Those manufacturers get the benefit of offering the latest & greatest, without the same level of demand to fulfill, nor level of scrutiny if delayed as would be with an Apple launch.

So unless Apple has some exclusivity with Intel & AMD for new chips, they're necessarily going to be lagging a bit based solely on volume, and have to make up for it with exclusive features (like touchbar) and fit&finish (like new chassis). Apple invests a huge amount in controlling the chip manufacturing process in iDevices including redundancy in the supply chain and (I believe) building different variants on different process nodes in parallel, all in order to push the frontier as far out as possible on capability + volume. But they can't on Mac, which means they're going to be less focused on it. Nothing like owning 100% of success or failure for you to care about it.

There's fair criticisms about USB-C but that's just how Apple does things; maybe they're 6-12mo early on it, but not much further. Same with chassis - they're dedicated to making each generation slightly smaller, and besides easing that constraint wouldn't have changed the current state of intel+amd chips, so they chose slightly lower performance now over larger chassis for years to come. I think they should have started with lower dongle prices; they clearly misread the frustration there.

We'll see what the sales are and how long this storm lasts. MBPs are going to be the driving force in mainstreaming USB-C, at least that problem will go away in a relatively short period of time. Dongles will be a way of life for older devices, but so will drivers not being updated by manufacturers and other annoyances of aging tech.