The short version is that the Linux ecosystem has for whatever reason spent a decade or so resolving the already-solved problem of "who is logged in to this TTY?" and came up with a new way to solve that that the BSDs don't in general implement and Wayland relies on.
Red Hat wants it to be really hard to remain compatible with Mainstream Linux (whatever Red Hat does) while also differentiating your distro from theirs in meaningful ways, and wants some good old “fire and motion” against competitor distros.
At least, I think everything they’ve been up to and these projects they heavily influence have been doing makes a ton more sense if that’s the plan. It’s that or a lot of weirdly-hostile and disorganized stuff has been happening by chance in a way that achieves that effect by accident.
