It is for me and many others. Emacs works great under XWayland but Chromium HW video acceleration doesn't.
Emacs is a community project whereas Chromium has billions poured into it. Even Wine's getting Wayland support now and that ran under XWayland fine.
I don't think it's that unfair. Firefox on Linux is just better. Leaves some to be desired, sure, but a lot less than Chromium.