Actually, they do get to complain about the weight of cameras on board. Back in the 90’s, before there was a camera on every car, they put dummy cameras of the same size and weight on every car that didn’t have a real camera on it, so there was no weight or aero advantage either way.
Guess the point I was trying to make is that as long as everyone experiences the same disadvantage on average, then it’s okay because this is a spectator sport not a “Lets make the fastest lap times” kind of thing.
Cameras are pretty light now but I’m sure you could make a case that cars would be faster/better without them.
The weight of the cameras doesn't really make a difference, because everyone has to carry them and so nobody is put at a disadvantage. What does matter is the aerodynamics of the camera pods - the rules give manufacturers some degree of latitude with regards to the design and placement of the outboard camera pods, so they can be manipulated to provide a tiny aerodynamic advantage.
Organizers get to make the rules. If heliwash means more spectators, then so be it as long as it doesn’t impede safety.