Why, Stress Free? It doesn't matter how stupid you think the rules are, they have to be obeyed WITHOUT QUESTION. PB did not do that, and, especially due to previous behaviour which resulted in official warnings, was fired because of doing something that was against these rules. Note how his defence was a mere attempt at trying to prove a previous warning should not have been issued on a technicality, and effectively admitted the behaviour which caused him to be sacked (EASILY classed as Gross Misconduct, which generally is Instant Dismissal so any previous warnings could easily have been null and void anyway).
Sorry mate, that's life. He screwed up, is paying for it (since he has to pay the costs too) but conveniently got some nice publicity for the inevitible book/after-dinner speeches/TV shows which will no doubt be coming up.