I hope they convince nvidia, but on the flipside, hope canonical has to maintain all of their Mir support out of tree for the various toolkits. (no one even commented on the MESA mailing list about their Mir patchset, hopefully this is a sign that upstream doesn't appreciate what Canonical is doing with Mir). If that is the case, i hope GTK+ and Qt do the same.
A certain sense of me feels that there's something wrong with this. Canonical is criticized for not contributing upstream. But when they do offer something upstream, it should be excluded if it doesn't fit the community's "vision" of what the preferred software should be.
The politics involved is pretty ridiculous, and I can understand why a company wants to just play the lone ranger role.