Another cash grab. If Peter were there it would be a real tribute (while he's still alive) especially if he would play. This is all about the cash for Mick. He's reeling people in by saying that parts of the proceeds will go to charity. Translation: he's keeping most of the $$.
John not participating is weird but like most said, he has survived cancer and he probably needs a break.
I hope they have the decency to honor Danny Kirwan as well. He wrote some great songs for FM.