why'd he go into hiding again?

Good on him and UCD for speaking at the clinic. Often times we in the public or fandom are not privy to the actual truth in matters like how his tenure ended at Stanford. We live in a state and an era where "complaints" are taken for fact often times prior to due process. I don't have any skin in the game and don't know the guy, but my guess as a semi-knowledgeable foosball (italics for a Momma Boucher bayou accent) fan is that 3-9/3-9 and a new GM had more to do with the end of his run than complaints that he was hard to work for.

I've seen more than a few times when a new boss comes in, they want 'their people' or hires in top positions.

Bingo.