I think you wildly overestimate Iran's ability to target. These missiles aren't "kill nuclear scientists in their apartment" they're "aim at a city and hope it lands"

Iran has ballistic missiles, which is an achievement, but aiming a rocket going at that speed with any accuracy is a monumental (read: expensive) engineering challenge.

Don't worry about that. Pretty soon Israel will have killed all the journalists willing to go into Gaza so it won't be broadcast for long!