You guys are fucking mental. He should be sacked. It's not even a question.
I can understand that a waitress doesn't actually care on any level bar a tip whether I have a nice day or like the food, I know they are just pretending, but if they advertised to millions somehow that their restaurant is shit behind the scenes and they may or may not scrape my curry off the floor, they get sacked.
This guy put himself in a position that he could be blackmailed and advertised his bias and lack of judgment. You then look at all his various fuck ups over the years, the conclusion is "there's no pattern to his fuck ups, I've looked at dozens of horrible decisions and the only pattern seems to be how horrible they are." Yeah, maybe he's not a great ref. He knew he was being recorded.