WTF was a military chopper doing flying directly over a school in the first place. Article say military response was to ensure flight patterns are changed. I would have thought at this point that airspace directly over schools and government buildings would be restricted areas. I guess not.
If the airspaces "over schools and government buildings were restricted", pilots & passengers would be airsick from all the 'jinking', zigging & zagging required to avoid them.
Besides, anything dropped from altitude can land far from the release point.