I hope it also means they've managed to do what no wayland compositor has managed in the past 15 years: have working accessibility (screen reader support, etc)

I hope it also means they've managed to do what no wayland compositor has managed in the past 15 years: have working accessibility (screen reader support, etc) that works with existing applications. Otherwise this is just another toy/demo distro. And no, gnome's wayland compositor did not achieve it either. They threw away all accessibility support and then invented two new gnome-only protocols for it that no software except gnomes own compositor supports.