It must be noted that Canonical earlier committed to support and embrase Wayland. Despite the promise to contribute to it the company silently stopped contribution and it was later learned that they were secretly working on their own display server Mir.
Intel's management recently rejected patches for Mir leaving it to Canonical to maintain Mir.
Before Intel's rejection, Gnome and KDE also refused to adopt Mir.
Intel's message is clear to Canonical — if you promise to contribute then do contribute."
Link to Original Source