That makes a lot of sense. I had LED lights on my trailer but replaced them with incandescent bulbs for a totally different reason. The low current draw on the LEDs would set off the faultly light alarm on my tow vehicle because the LEDs didn't draw enough current. The tow vehicle's computer system apparently presumed that the trailer had a burnt out light!
Still, I think it does make sense to consider the fact that the bulbs don't generate heat and on a snow vehicle, where snow builds up on all the surfaces, heat is your friend because it can melt the snow off the lens of the bulb helping to keep the light visible to people coming up on your rear at higher speeds.
Thanks for the tip!