I never said drone pose no threat to helicopters and older aircraft. I mearly pointed out that the airliners were built to newer higher standards. These firefighting aircraft are not. Also I never said that it's OK to fly drones around full scale aircraft.

I have a hunch that the video's show are from drones. I do not believe thay would have let reporting helicopters in the area. I fact I believe the TFR would not allow that.