I'm not being dishonest and I am well informed.
X11 is slow and bloated for sure, but how is that relevant for AROS? X11 won't be doing compositing for the system beyond the containing window, will it? It's an honest question since I don't actually know how Linux hosted AROS works, but I would have guessed that the hosted AROS desktop _could_ be rendered using 3D cards and whatnot, regardless of the windowing system.