>and intentionally stifled improvement on xorg
Open source developers are not required to spend their time prioritizing your priorities. You just have to look to Xlibre to see that a lot of contributions are quite bad quality, and in a C codebase of Xorg's complexity and security profile it's not a small job to review things.
Nothing I said in any way implied that freedesktop should be required to do anything. I can't speak to the quality of xlibre merges, only that if whatever is going on over there led to improvements in xorg after a drought, that's a good thing.