When you're strong and being polite, everybody thinks your politeness is a virtue of the strong. When you're weak and being polite, everybody thinks your politeness is a second face of your weakness.
Inter have been weak for many years. They fell beyond the mark of the complete irrelevance. Beppe makes them relevant again. Yes, what he does is ugly. But it works. And since Inter were always ugly, it works flawlessly for them so far.
And, of course, Marotta is pissed by how he was kicked out of Juventus (he doesn't even try hiding this fact), and it speaks in him too, which is sad. I hope he doesn't cross the line though.