Well, of course if you dont' want to hear about something, the first thing to do is to label it anywhere from "non technical enough" to "GNOME hate". I've seen that happen a lot, and it gets annoying after a while.
Having "to use a separate program to tweak some of their settings or having to spend 40 seconds to install an extension" is perfectly fine by me, but a) when you have to do that many many times, just to reinstate what should be considered basic functionality, you wonder if it's still worth it or if there's something really wrong about that thing you installed (that's why I ditched Unity too, btw, I could configure it to something more fitting to my needs, but it turned out to be really a hassle), and b) for a desktop environment supposed to just work right out of the box to cater for less computer-savvy people, that's just ridiculous.
Finally, while it's good that people are listening and that they realized that some specific features were done wrong and are now fixed (sort of), criticism aimed to the fundamental principles of the Gnome Shell UX have been so far been ignored or dismissed. See below GhePeU's comment about Gnome 3 workflow:
"I'm constantly switching between windows, creating new windows and destroying old windows, and all this actions now involve launching disruptive overlays and clicking around two, three or four times until I find what I wanted to see because a simple per-workspace task manager is apparently too complicated and multiple windows sharing a desktop is against the new fullscreen paradigm, not to speak of the always unpredictably changing number and order of the workspaces."
That's the most important criticism that's been levelled to the Gnome devs by lots and lots of people: the new workflow is unpractical and ineffective for us. I could elaborate on this, but it's already been done in hundreds of forum posts and scores of blog entries. Can you point me to any sign of "listening" by the Gnome devs? So far what I've got is "you have to get used to it" (tried, didn't work, and in any case you're doing it backwords) or "if Gnome Shell doesn't work for you there are so many other desktop environments among which to choose" (which is a) a just more polite way to say "fsck off", and b) so ironic, since the very birth of Gnome 3 contributed to a slew of Gnome 2/3 forks ...).
I would love to see some form of "listening", but so far I noticed none, on the contrary some UI decisions are again going in a direction that I consider deeply flawed (separate menus for applications??? really?). Which is why I'm among those who voted with their feet and switched to something else: Cinnamon in my case; still following Gnome 3 development as that's the base for Cinnamon, but that's about it.