I would actually take PP's version of events over these so called anonymous sources protecting the powers that be and putting her in a bad light. Yes, she should probably name names, but hiding behind so called gossip sites is worse imo.
I like MH, but he does strike me as a control freak and someone who burns bridges when he feels slighted. PP may well be similar, but she does seem warmer somehow.
His scenes with MW in his last year seemed strained too, so I'm guessing he may just always have to have a whipping boy of some kind. It doesn't mean he's a bad person, but when you have a lot of power it can make things very unbalanced. Just my two cents.