Even if you get it is debatable if you can manage to penetrate full granite mountain with dozen of bombs that you have, by available information is that you do not have more 50 in arsenal of such.
I think that is the main issue about hesitance, simple improbability for success is large and aftermath risk way above predictions of any office worms analytics.
But probably you will do it anyway there is no rationale in america policy towards occupied palestine, you just do their bidding and deliver, no matter and worrying about consequences.