I don't think the fact that Whitlock has self-interest at stake here is lost on anyone.
Clearly, he wins if Pioli continues to fail and is eventually publicly revealed to be the megalomaniac that he is. It doesn't change the effect of his efforts, though. And he has stepped up in a time of need ... with both his talent and money. That deserves both acknowledgement and gratitude.
On top of that, the enemy of my enemy is my friend.