I do receive Xorg updates from time to time on Arch, so I don't think it is unmaintained. It don't get any new features as far as I can tell, but for some this is a good thing. I don't like a display server that moves fast and breaks my system.
Will you never want HDR, colorspace support, and whichever feature is next? Even if that is somehow the case, I would think most people aren't software archivists.
For the record, I do actually work on the analysis and processing of hdr and multi- and hyper-spectral images. Using 8 bit rgb colors on my monitor is still alright, and I'm very happy with X (and I would probably still be happy with wayland, I really don't care).
Yes, yes, people who actually worked on X didn't like it already. But the total amount of work of fixing the issues via Wayland is surely larger than the amount of work fixing them via X would have been.
Going with Wayland wasn't a good engineering decision, but it was probably a good social decision.
But since you raised it: your description is quite misleading. One person proposed Wayland. Some others (who happened to be already unhappy with X) thought it was a good idea. Most of them were or are involved in Xorg directly or indirectly. But the development of Wayland was not some upfront decision by X developers.
And then they just stated a fact "oh, see, no one wants to maintain Xorg" as if they didn't know. This atmosphere of faux surprise is what I didn't like at the time. Also the unwillingness to publish a step-by-step guide of "how to make a release" with simultaneous unwillingness to make releases. I bet if there appeared an actor actually willing to take up maintainership of Xorg, that actor would be actively smeared, gatekept and bottlenecked to death by the current Xorg gatekeepers because Xorg dying and their crippled darling taking over is their dream.
Yes, switching is causing issues and some chafing, but no one questions the fact that it is the way forward.