[Yeah, sure]
RE: They want to bare their fangs - show they can inflict casualties - without provoking a hugely damaging response.
More importantly, I think they wanted to use this strike as a propaganda to their people that they have done “something” to avenge Soleimani’s death.
They are reporting in their controlled media that they have killed dozens of Americans in their strike ( which MSNBC dutifully parroted, and which they are sure to re-broadcast on their own controlled news ).