If a rocket did hit the dome of the rock. The world would insist that Israel blew the thing up from underneath, even if they had the video of a missile landing upon the roof.
If Israel is going to be accused of it anyway, might as well just do it and take out Mecca also. I would also submit that the Mullahs in Iran be taken out and someone needs to FedEx Nasrallahs head to Morsi in Egypt.
I am a fan of the Michael Corleone school for closing the books.