It's more or less the same reason why I like Gnome's minimalistic approach.
I have ADHD and everything I DON'T need is an OS that distracts me. FFS, I'd work from a VT-100 (even though I'd prefer a 3278-2 or 3279) if that was possible.
It sucks though if you really want things another way. Then you have to mess around with third-party addons that break every time there's a major upgrade. It's the main reason I moved back to KDE (and the OS being closed off more).
I would never choose to use Gnome for this reason because it does the same thing. But at least on FOSS we have many options available, to each their own!
I really really want to see this come back. Even back then it was never released to stable and I got it from a script that grabbed and compiled all the bleeding edge stuff. It worked for a few weeks and then an update somewhere broke it and I never saw it work again :(
https://extensions.gnome.org/extension/3210/compiz-windows-e...