You actually thought you could make a dent in mobile OSes when even Microsoft couldn't?
Right. Microsoft will tenaciously support something for a decade even if it's a flop. They need to do this to attract any developers in the first place.
Five years ago, I thought that the idea sounded interesting, but Mozilla's lack of being able to commit to anything was a red flag for me. I suppose this was true for most hardware vendors, and they never pledged any kind of long-term support, so it was doomed from the beginning.
The bigger problem is that MoFo is paying people half a million dollars a year for "leadership" and they don't even get such basic concepts. Good luck convincing smart people to go work in a corporate culture of intolerance, though. Maybe they can get some smart consultants though, if caring about the original MoFo vision and cash-on-the-barrel are the only requirements.