Still do....but I am sure they have a license to do it, and have all the paperwork etc.I remember when people used to fly planes over JTS during games with banner ads towed behind them.
Keep in mind an airplane would be in contact with the airport and control, so would be a known flight. And would have to file its flight plane etc with the FAA beforehand.
Which is why this is a no fly zone for Drones and other things like ultralights etc that would not have any of the above, unless they went through the proper channels etc.