> Its a mystery...
Not a mystery, though, is it? Israel has excellent air defense which is why the damage isn't x10 worse. But Iran is definitely making a huge effort to hit the civilian population for maximum damage.
Unlike Iran which is literally aiming statistical weapons at population centers, the US has high accuracy weapons - the school was hit because intelligence wasn't up to date (it used be an IRGC building).
Your comment is absolutely misinformed, or worse, spreading disinformation on purpose.