I tend to agree, the problem is, this was not a conventional war, for which the concept of war crime was made for.

The combatants were not wearing uniforms. The van was not marked as an ambulance. All civilians and some had weapons - and on the other hand US soldiers thinking only in terms of conventional combat, where there might have been an rpg still around for an enemy to retrieve and fire at them.

"Well, it’s their fault for bringing their kids into a battle"

But they happened to live there. They did not visited a battlefield for fun. So yes, the video showed quite well to the world the reality of urban fighting against an uprising. Dirty as hell.