Wayland is a neat idea, but it's not a replacement for X11. Network transparency *does* matter, not only because people will always be running dumb terminals, but also simply because it necessitates clean design and standardized protocol.
Wayland cannot replace X11 because it does not currently, nor does it aim to, provide a similar feature-set. X12 might. *Any* meaningful discussion of this is significant, because it is needed.
Heck, there's nothing to say that X12 couldn't be built *on top* of Wayland. They're pretty much orthogonal in my mind.