Just a visual metaphor for Iranian military and security competence. Losing your entire chain of command in a single airstrike in Damascus and then spending $200m to retaliate and hitting only a 7 year old girl? Not a good look.

But don't take it from me: https://www.youtube.com/watch?v=KofROKGMnvU

Watch Task & Purpose, one of the best military analysis channels.

And, given Iran's history with diplomatic missions, they can't invoke the sanctity of theirs.