Naw. When fact and myth collide, go with the myth.
Fact or not not, the concept has some merit. However, now you are waking around in the arctic with no buttons on your parka. I suppose that if you're starving, it really doesn't matter for long.
Ever since my Churchill experience, I have never complained about the heat. I know that heat can kill you as well as cold, but if you have shade and water, you'll survive. Cold is insidious and it will lull you into asleep from which you will not awaken.
A lady walked away from a dance at the Navy base in Churchill after an argument with her date. It was about 5 kms to the civilian town site, if I recall correctly. She was found the next day asleep in a snow bank in her party dress and mukluks. I was hospitalized with a boil and an Indian in the ward had black skeletal hands awaiting amputation. He had fallen asleep in a snow bank hanging onto his wine bottle.
The idea of arctic warfare holds about as much appeal as does nuclear war. Both are a vision of hell.