Only because the wayland community insist on bundling everything into the same binary. Someone could make a compositor that had a swappable window manager component.
>when you want to execute an X application on AIX and display it on Linux.
Don't forget XWayland exists. So it should just work. waypipe is for if the server is using Wayland.
>Many Linxisms that need to be ported to the BSDs
Wayland supports FreeBSD so it must not be that bad.
>Will probably obsolete many old computers due to resource usage.
Why would Wayland use more resources? What work is it doing extra compared to xorg?