I live near a military base, and there is a daycare, school, rec center, pub, ice rink, church, and grocery store, open to the public, and not managed by the military. All of it is on land owned by the military, but outside the wire.
The fact that these facilities exist on military land near a base (which a hostile government would surely argue IS the base) does not mean that the people in those buildings have it coming.
I mean, you kind of are saying it was justified, given the entirety of your focus is on justifying it. The blood is solely on the hands of the useless, dumbshit military that couldn't identify a school and avoid bombing it. And that's the charitable interpretation of their actions.
I think sometimes people watch hollywood movies and get the impression that it represents a kind of cataloging of our military capabilities. A demonstration of what we can do to our enemies. With the underlying subtext being "don't mess with us."
I just want to gently suggest that not everything we see in movies is factual with respect to military or intelligence capabilities.
I'm an old timer. I got off the bus at Quantico in 1991. But even though I'm not in right now, I'd feel confident in betting that we don't have the capacity to surveil that many targets via satellite for, say, 1 week, prior to our attack.
(Of course, when I got off the bus at Quantico in '91 I also would have been just as confident in betting that the US would never engage in a first strike. So what do I know?)