Again, nobody thinks that locks are 100% secure in general, and anyone who thinks that hotel rooms are particularly secure is fooling themselves.
However, I'm not especially fond of the notion that ALL 2 million hotel rooms using this lock are WIDE OPEN to anyone with a little bit of hardware at any time.
I assume that right this minute a variety of criminal enterprises are building hotel-door-room-openers in dry erase markers and a wide variety of other everyday objects, and using/selling them. If not, I think I just found a new business model.