the linux community makes me laugh so much- when gnome 3 was first unveiled you couldn't find a single positive response, everybody winged and complained that it was cumbersome, overdone, required more clicks etc. In steps canonical, with unity and everyone screams that they want gnome. I think opensource folks are just resistant to change, but once they try it they eventually come around.
While we are on unity, that may be the default, but I have no doubts that they will also release a version like kubuntu, xubuntu etc that still uses gnome, so anyone who is throwing their toys should not do so quite yet.
as for Wayland, it is the future, but canonical wont implement it until it is ready to be implemented.