If you break a rule in a rule book it should be called.
Or you may as well throw the rule book out.
And, quite honestly, I'm ok when they do that. I'd prefer they don't make calls...the flow of the game is better. But if you're calling 5 on 3's and calling some too many men but not others, and then decide not to make a call in OT, it's inconsistent. Either do or don't.
To allow refs to pick and choose really isn't the answer.
End of story.