They said "Do be critical, but not sensational", they're not asking you to hide criticism, just to do it in a productive fashion.
What is this supposed to mean then? The implication is that we think of the greater good when formulating our criticism - something I am saying is the opposite of productive. We should attack Mozilla's incompetence head on, not give them a pass for deeds in a bygone era.
But this is akin to hyper focusing on Montana's Greenhouse emissions. They're problematic (one of the highest per capita) but clearly there are bigger fish to fry (<1% of US emissions). If we focus all our efforts on Montana then Texas incidentally gains, since they are the largest contributor to US emissions. Perspective matters.
Which is exactly what I am suggesting people do in my comment (note I go on to say why I see it as a good thing that the Chrome renderer is taking over). I didn’t just criticize your critique I suggested why I thought it was wrong on multiple levels but somehow that got missed in most of these threads. Mozilla won’t win on ideology, they have to win by being a superior technology.