I don’t think that is necessarily true. Most of the work goes way back (1984), done by people who have been retired for a long time now. Then in the late ‘00s redhat’s x11 maintainers (i.e. young people who were hired to fix bugs, not original developers) intimated that with DRI/DRM, x11 had become mostly obsolete, and that they needed to start over, so we got wayland. All I would add to that is that if they were correct, rather than conjuring an excuse to write their own thing, everyone would have jumped to wayland over a decade ago, but here we are, 17 years later, the benchmarks are still weak, and people are still squabbling. seems more like JWZ’s CADT than anything else.