I have no problem in such events as this, but I think it'd be a little more productive if this were wayland, or even Mir focused. One of those 2 (maybe both) will be the replacement to X. Why not help speed up the process?
I don't see why everyone should stop working on software that works just because some other guys decided to reinvent the wheel. Also I really don't see the benefit of Wayland and Mir from a user perspective right now, so i'm glad people don't just abandon Xorg and keep improving it.
There might be more, but that's what comes to my mind immediately.
Ok you're just trying to hate mir. Mir I think intends to do all the same things as wayland except it also strives to be compatible with current android drivers. I think it was a low blow for Canonical to decide to make this without telling anyone, but if they keep it up, mir will be better than X for modern systems.