I don't think hiding our criticism for "the greater good" is an appropriate path forward at all. Mozilla and Firefox have real problems and plugging our ears while they go up in flames isn't going to help. At least if we are vocal in our desires they have a chance to listen and right the ship (if there is any hope of that at this point).
Personally I'm all for the standardization around the blink engine (which has been contributed to by Facebook, Google, Microsoft, Adobe, Intel and tons others) at this point. I see it as similar to the internet backend standardizing around linux. It makes it way easier for developers to reliably test against an ever evolving and complex web.