And that's the crux of this.....

He gives an interview sanctioned by PGMOL saying 'some managers are difficult to work with, see the interaction I had with Klopp at Burnley' that's ok.

He does what he's done and it creates an impression (false or otherwise) of bias. That creates a catastrophic loss of trust. He can dislike Klopp and still be impartial, but if he makes intoxicated statements calling him a cunt, then it's clearly going to undermine his authority.