It's amazing this flew over testers heads to be honest. I'd say it would be perfectly fine for PvP TT. Or at least if both sides had upgraded to 2* or 3*.
If they don't get rid of it on NPCs they should at the very least make their card-pool a bit more balanced. It would be broken in the opposite direction if their pool was exactly like ours (considering how often their moves counter common logic), but they at least need more weak-mid-tier spots.