Gnome is good as it doesn’t had a lot of complexity and looks nice out of the box.
I do wish the gnome devs would be a little more flexible. However, I also wish KDE had a dumb mode that disables the customization. Xfce4 has a kiosk mode
So, here’s a thought. Instead of removing customization, people just, you know, not customize things. It’s like going into the Settings page, except instead of doing that, you don’t do that.
Problem solved.
It is still overly complicated. Gnome is simple, stable and mostly unchanging. If also can force settings with dconf.
I would posit to you that it is, in fact, the perfect amount of complicated. If I want to change something, I don’t have to program and/or install an extension that will get blown up on the next release of the desktop environment because of the lack of fucks that Gnome gives for people that build extensions for it.
I will concede that it would nice to have dconf. But considering the amount of stuff that can be configured in stock Plasma, that might take a lot more than the 3 settings that Gnome allows you to change.