What are you talking about? Author is talking about user experience, they way changes (as far as user is concerned) Do Not Happen (much), how they don't try to invent new UI paradigm (cough Gnome cough) and are Not Fucking It Up (cough KDE4 cough).

As a user I don't care about X11 / Wayland. I mean I do, from the security viewpoint, but not otherwise. Xfce could port itself to Wayland and (if done properly) I wouldn't even notice. It is nice to know that on any Linux machine I can install UI desktop environment which is usable, dependable and... complete.

I love Xfce and hope they never change. Kudos to everyone involved!