absolutely not.

a very near example would be immersed vr which is compatible with xorg and does essentially the same thing (2d windows pasted all over a 3d world), although not integrated into minecraft. also since their solution isn't wayland-centric it has ports to osx and windows.

wayland deserves credit but not for this concept.

xserver only takes about 10 lines of code, that doesnt sound as impressive as 8,000