1) those missiles could not hit us. Not even close.
2) those missiles could not hit the targets the aimed at. They were not scary.
3) missiles without nuclear warheads are not really scary anyway.
4) Iran never fired them without having been attacked first.

The Israelis claim to have worried about these missiles. But the Israelis could shoot them down without much problem.

And if no one gave Iran a reason to fire their missiles, they wouldn't have fired them.

Not a threat worth fighting for. By a long shot.