You've said this several times. Theoretically absolutely spot on - I agree. But practically, firing all missiles at Israel while all those lovely radars are up in the intervening Arab nations, om American bases, and on NATO airborne monitors, all of which are providing an early warning shield to Israel - is called pissing in the wind. Iran had to target these peripherals first....and probably still has to, before then depleting the interceptors, before finally being able to strike. In a round-about way, Tel Aviv's multilayered defence (the bits actually provided by everyone but Israelis) works well.