Ouch! I totally understand how you must be feeling right now. Ken (kcarlile) was installing some new tweeters in a pair of bookshelf speakers he had while we were roommates in college and accidentally poked a hole in one with a screwdriver. He didn't feel too smart right then...
Anyway, I think as long as the speaker doesn't rattle when you shake it and seem to play fine, then I wouldn't worry about it. It's good to know the M22tis are that solidly built. Right now, mine are about the same height as yours and there will soon be a little pair of adventurous hands in the house.
