Flying over people is a joke and a unreasonable policy that needs to be addressed to allow for some flexibility, (not a waiver) Unless an area of flight is an enclosed perimeter, preventing a person from walking into a flight pattern is unforeseeable.
Oxymoron Alert: FAA has determined that airspace is public, therefore, how do you stop citizens from walking onto a UAV flight pattern, when they have a public right to be there ? Can't have it both ways, either you restrict specific airspace from all UAV flying or restrict the public from entry onto certain airspace. The rights of both a UAV pilot and the public must be addressed but will not until a lawsuit and the courts come down with a decision.
Until then FAA unreasonable policies will not be adhered to by ALL.