No, it wasn't dumb at all. It was a brilliant heel move. Sure, he didn't actually put him through the table, but it was amazing heel tactics.
Similar to what Cena did when he ducktaped Batista so he couldn't answer a ten count. (Not heelish, but still a brilliant move none the less.)
Once again, this puts over Miz as that champion you -think- anyone can beat, but yet he still finds a way to win. (Just like that report said WWE has planned for him.)