But GNOME is not doing multiple things at the same time, this is the PROBLEM.
GNOME will abandon their current user base just to chase new users. i.e. they are willing to have zero users ( momentarily if they are lucky ) in the hope of having different users. And in a market that have missed!
They should try doing multiple things at the same time. Start from a position of strength, don't restart from scratch. Don't leave your existing users behind. Don't remove functionality. Have a policy of no regressions BEFORE releasing new stuff. And FINALLY get a roadmap that is believable and has user buy in.