Seeing a vulnerable set of kids happily playing and hearing a confident voice say "A shooter could end all this. We can prevent it" validates that and closes the sale.
If a cautious pragmatist goes to the demo thinking "i know crime stats have declined for decades and im concerned about misuse of technology." Then a performatively confident person says "this is a component of a massive surveillance state ripe for misuse. It will give us footage of crimes and only stop a small percentage of them," how well do you think it would sell?
