Taking that to the tribunal is a strange way to deal with it. Was the umpire offended by the f-bomb or by being called a cheat?Will they investigate if the umpire actually is a cheat?
Seems that the offensive language part of it is more likely based on the wording of the rule, but who's offended by that these days? I would say worse would be uttered in a primary school play ground.
So, the AFL refers a case where a player calls an umpire a cheat to the tribunal huh? Maybe this fits into the rule somehow, but wouldn't it be at least a bit prudent of the AFL to at least investigate what caused the player to make that statement? L really doubt somebody would make an accusation like that if they didn't hold a strong opinion that they had been cheated.
The game is emotional and I suppose, even for players it must be hard to hold back if they really do feel like they were hard done by. But if he just didn't like the ump he'd surely just call him a campaigner as opposed to calling him a cheat.