Those buzz-bombers cost Iran about 20 million, but the cost to Israel to shoot them down was probably in the billions. And Israel has a finite number of 'bullets.'
This is why Israel has to counteract. The Iranians must see that drone attacks are quite costly.
Same SOP as Houtis shooting at ship in Hormuz. Throw cheap rocks and watch defender bankrupt themselves. This is why a response is part of self defense.
Which is why BeijingBiden will do anything to stop Israel from ending the conflict. First, he is a virulent anti-semite. Second, this is another opportunity to print more money (thereby destroying more of the middle class with inflation) that he can give to MIComplex to ship more high-tech crappola to Israel.
Israel ought to drop a bomb on Tehran. A disabled one, with the nuclear warhead removed. Send a serious message. Do that one more time and Tehran will glow. And, make sure the world knows.