Wayland by itself is useless, you need other stuff to get some useful functionality, and the combination of Wayland+other stuff not only give you just a fractio

Wayland by itself is useless, you need other stuff to get some useful functionality, and the combination of Wayland+other stuff not only give you just a fraction of the functionality you get out of the box with Xorg but they also tend to be bloated silos (in that since Wayland itself doesn't do much it relies on extensions to do actual work but different Wayland implementations use different extensions - in theory X is the same, but in practice everyone has settled on Xorg and even without extensions, X provides enough functionality to allow creating useful applications). Also for all practical purposes with Wayland you also need XWayland, which means that you get X anyway (especially considering that a lot of simple stuff will rely on X functionality). So might as well stick with X itself and get rid of Wayland as it doesn't provide anything of real value.