“Anytime the wing is moving faster than the fuselage it has to be unsafe.”
Ooooo, oooo! A fixed-wing bigot. I’ll bet you hate exhaust fans too. Bigot!
(Just joshin’ ya. Sorry, couldn’t resist...)
“the wing is flying faster than the fuselage”
Heh, heh, as a helicopter pilot (US Army retired) I’d never thought of that, although I will say that the further away from the main rotor the faster the rotor speed until at the rotor tips the velocity is actually supersonic. This is why when a UH-H “Huey” is approaching you, it sounds like a machine gun. That’s the sonic boom or “tip snap” of the rotors.
As to unsafe, well it’s true a helicopter requires the pilot’s constant attention. No set it and forget it to be sure. But in landing, a helicopter decelerates to a complete stop. And it is reassuring to be able to autorotate to a small forced landing area and touch down with no velocity remaining.
Anyway, the pilots were completely within their rights to not only refuse to tow banners with an atheistic (which really means anti-theistic) message, but to express their disgust at it as well.