Can we stop the charade? None of this is true. The maintainer got
their privileges from X11 removed because they were... not a good
maintainer and randomly broke interfaces that existing software
relied upon. And even introduced security issues with some of their
patches. And XLibre broke compatibility with the one proprietary
driver that actually matters here.
I would be interested in references for this. I do not doubt that it is
true, but the only reference I've seen thus far which might have gone
into detail about technical inadequacies of the XLibre maintainer(s)
goes through a Website which blocks access from the browser I use on my
primary computer (for site-security reasons, because that browser is
severely outdated - it's a long story, I'm working towards changing that
but it won't be soon).
I parse the idea as being something like "because Xorg has been
declared unmaintained or similar upstream, it will inevitably bitrot and
become more and more broken over time, so it will cease to be a viable
option; in order for X to continue to be viable, it will be necessary
for distributions to switch to a new upstream; the only current
candidate for an alternative X upstream which has enough contributor
interest to seem potentially viable is XLibre". Thus the "as legacy X
implementations lose maintenance" bullet point, above.