I'm fairly sure that's what they did to determine the Zanmato exceptions.

All it really boils down to is whether or not Yuna can use him, and multi-form monsters, and that's what matters.

"Cheating" as you are arguing about, also boils down to this: "Can I kill the enemy boss really fast with this?" In which, case, using a controller is a form of cheating. Thank God I don't fall under THAT category!