I think he is at least partly right, and mocking him to avoid answering his points is quite a trollish behaviour.
Team principals must have some stability to create a winning team, and even Ferrari's dream team needed several years for this, but Domenicalli strikes me as too soft for this position too. I still trust he can do his magic, but each year that passes I'm more uncertain.
Massa should have been shown the door earlier probably, or at least being signed a shorter contract after his accident, I'm sure there were clauses that could be used for this, my guess is the team sacrificed performance for good PR... not understanding that haters are gonna hate regardless, there's no converting them, they should only focus on fans and neutrals and to sway those they need success. Massa was never good with bad cars unlike other top drivers, and while he is good with good cars, he isn't fast enough to win a title on his own unless he has a rocket of a car (he did in 2008 and failed by the slightest margin, against a mistake-prone Hamilton), and as we saw in 2010, he is unable to cover the back of the nr1 driver once he is designated as nr2, he simply isn't fast enough for that. So yes, I guess this year he will be out, regardless of performance (although it's unlikely he will start to perform great now).