Doesn't help - the quadcopter's cameras don't _need_ to be only sensitive to the human-visible spectrum.

(having said that, Rayleigh scattering is frequency dependant, if I recall my high school physics correctly, IR will scatter lees than visible light – I doubt thst matter though, in ship-to-ship communication there'd be more than enough mist/water in the air to scatter enough IR for a suitable camera to see the beam)