How is it abusing the laws?! You'll be surprised, how many times in a game the CAR just shrugs their shoulders and says I have no idea, in view of all players and spectators. Through experience, I have found it causes a lot less drama and issues, by being clear beforehand what I will do in those situations vs making a decision without any briefing. Maybe you can argue it's bad positioning on my part, which is probably fair. But when a CAR is 2 yards away and shrugs their shoulders, it's less controversial for game management to go with how you've explained you'll act in that situation, than make a decision from 20 yards and have one team contest it.
As an aside, you think any players / managers actually believe in this spell? I really disagree with this notion that refs are perfect and never make mistakes and we should act as such.