A bird strike can take down a GA aircraft. AFAIK UAVs weigh more than birds. And yes it does fly very close to the ground, but so do rotorcraft. I disagree with the zero risk statement.
Do you see my point? Not everyone with concerns about UAVs flying in close quarters with manned aircraft are fools. I'm not saying they can't coexist, I know they can. But we don't know the situation here. This is a one-sided argument from the UAV manufacturer.
"Uninformed" and "uniformed" are (allegedly) different.