"Tell them that we missed on purpose, just to send a message that we could have done much worse..."
Ironically because of its pathetic airforce, Iran does have some impressive missiles.
It’s highly doubtful that all 22 (the current count, but who knows) would have missed, unless diliberately aimed off course.
Further in that regard, the Iraqis report that Iran called before the strike and said where they were going to land.
This was a “oh shit Trump will kill us if we really attack” attack.