Netanyahu desperately wants to drag the US into a war on Israel’s behalf. It would shore up his crumbling position at home and complete reframe the narrative in the West away from the genocide in Gaza, recasting Isreal as an embattled ally once more.
I think you’re seriously underestimating the strength, size and funding of the Israeli military, combined with the significant presence the US has in the area. They’re likely to be quite capable of holding off a full scale assault by an Iranian lead coalition until more forces can be deployed.
Isreal is a very paranoid, highly militarized state. There is no attack that will be “faster than they can react.” They’re basically on a war footing all the time, and especially now with the recent ratcheting up of tensions.
Iran has very few strategic or tactical advantages in this situation.