Having seen cycles like this over and over. Some project develops over decades which included many corner cases that need covered. It then becomes difficult to work with or adapt to some newer "things" (in this case modern gpus).
So people start to look at making a new project "taking" the bits they deem in important or adopting a strategy to work better with those newer things. Then after many years the project in some aspects starts to resemble a state of what it replaced. Repeat...
Now maybe I should have been a little more explicit I just kinda surprised how blunt the developers of this distro are being here. Having just decided to play around with wayland again just this last month and still noticing issues. I can see plenty of reasons why people would not want to switch just yet.