Calling Enrico Weigelt an "Xorg developer" is a bit much. He's someone who showed up, started submitting a bunch of very PRs to clean up the code, and then other people had to revert them when they broke the build. None of the work he's doing is the kind of really important code maintenance that Xorg would need.
This is just something he posted to a mailing list that nobody replied to. Xorg already has functional CI and is relatively easy to compile already.