Desktop Linux needs standardized and stable infrastructure. X11 delivers on that perfectly.

Wayland despite receiving huge amounts funding has actually far more moving pieces. Even for the simplest tasks you have to deal with a dbus infested portal maze, many parallel infrastructure effects and high fragmentation. The API is atrociously stupid and cumbersome.

Besides that the modesetting driver of xorg also sits "properly on top of kernel abstractions". How is this in any ways a relevant criterion. What matters is that Wayland clearly makes the wrong abstractions for Desktop applications and the vast amount of parallel infrastructure required to do even the simplest tasks shows that.