Many things in the list are niche concerns, counter to the design of Wayland or are actually solved today. But regardless the beauty of Linux is choice. I hope X11 and non-systemd distros stick around for the few that have those niche concerns. I think a lot of frustration from these folks come from the fact that they wished they weren't in a niche and better served by more maintainers, but that ship has sailed. For mainstream use-cases this has mostly been a good thing.