Whataboutism is of course the expected retort, especially with anyone who has a rooting/fan interest as you do in this instance.
I watched the game live from the moment the Cavs game was over, so, I think what you're referring to on the Divincenzo foul is the one where Lowry was called first for the foul, and it was reversed during reply as the refs ruled that Lowry hit the ball first forcing the ball loose and then from there the ensuing contact was, let's just say, fair game? So, an overturn based on rule? In any event, that wasn't in the waning moments, so, no where near the impact relative to the recovery period left to overcome such a "bad" call.
The grab that Brunson had on Maxey was pretty blatent, based on the actual footage I saw, I mean his jersey was pulled to the extent you could see the under tank worn by players. Regardless of that missed foul there in a very crucial moment, the refs didn't afford a time out (a two separate occasions) when Phillly's head coach had signalled for it. I mean, a picture paints a thousand words...