What evidence do you see of that?
I hope you are right, but I haven't seen much evidence that they are cowed, or are even paying much of a price; the lack of follow-on terrorist acts may be evidence, but you suggest more.
In general, they have lost freedom of action. They aren't really secure, anywhere - we are taking the fight to their caves, homes and cities, and the only thing keeping them alive is that we don't know who they are.
They are absolutely tough, resilient and resourceful, and the situation in Israel is evidence enough that it may take more than we have to completely eliminate the threat, but their cost of doing business today is MUCH higher.