A similar thing bugs me about penalties. Endless replays to find evidence of 'contact' when contact should not be a criterion. Contact is not the same as a foul. So when someone goes down in the box just because someone's body part has lightly brushed theirs, I cannot see why a penalty should be given.
I also, like TM, am a little disturbed at the creeping tendency of Alex players to rush to the referee brandishing imaginary cards. It's distasteful and, in the long-term, probably counter-productive.