Treacherous trap hole has severe limitations, decks with trap hole often have very little to none other trap cards. Block trap hole and you've got free access to attack anything in the coming turns. Sometimes I don't even block it, if it is just removes two lvl 4 monsters. They're either replaceable or revivable from the graveyard.
This card has the same problem that WoD has, very powerful effect but narrow activation timing. You can also scout for it. since there's no delay in the main phase allowing you play around it.
Im starting to think I have some kind of unlimited patience because I dont really hate any trap as most of the commenters here do. Weird. However, canadia seems to be a way more bothering than this one (not that Im asking for any limitation btw, Im just saiyan...)