X11 has been unmaintained not once, not twice, but THREE times and it's still the dominant system on UNIX-type things. Xorg is, itself, the thrice-disowned descendant of the o.g. X project.
That is what it is! It's fine! if Wayland is the future, so be it, but it won't be because X11 got deprecated again. X11 has been deprecated plenty of times before!
Wayland may very well take over the unix and most especially linux desktop story, but that is not a done deal, yet. My last two? three? jobs all explicitly required X11 as a thing, so if giant enterprises are not picking up wayland, the deal ain't done, yet, you read me?