Even though the implimentation maybe bad, the ideal is a good one. Fine, let's just all support AROS as it seems to have the potential everyone is looking for.
Why not define a new Amiga reference platform? To heck with backwards compatibility, we have UAE for that. Why do people still expect software written 20 years ago to work today on modern and completely different hardware?
The look & feel of AOS is what people appreciate. Who cares what hardware is behind it? What is an OS? Is it a kernal? Is it a filesystem? Is it a gui filemanager? The only thing I see the Amiga doing today that Windows still doesn't is screen dragging. It's not that Windows can't be programmed to do so, it's just what's the point really. Not much use these days.
Hardware is a cheap comodity, look & feel is what matters to most.