Cheap is a matter of opinion. Triple Slash is cheap. Slayers are cheap. Gunners are cheap. Super armor is cheap. Exorcists are cheap. Just because those are my opinion, does it mean they're banned?
It's these types of things with, "YOU CAN'T USE IT BECAUSE EVERYONE BANNED IT BY ORDER." is stupid. Sure, I'll accept it if there was an official tournament rule used by DnF/Korea, otherwise, if just player community, that's plain retarded.