Our different languages prevent us from understanding each other. What I'm trying to say is, when you look at the tent, you can see there's no avalanche! There's no snow slide! Whether there's an avalanche on that slope or not is irrelevant. There are only two options to force them out of this tent: 1. Humans, 2. Jinn. Otherwise, there's absolutely no chance these experienced and intelligent young people would freeze to death after going out into the forest for a walk. If the force hadn't attacked them, they could have walked hundreds of kilometers half-naked. They had that ability and strength.
Unfortunately, I do not believe in demons if this is what you mean by Jinn.
I think you might underestimate how cold it can get.
You may be an atheist. I understand, but this world we live in didn't come into being on its own. There definitely is a Creator. And if there is a Creator, there must be demons and similar creatures. Yes, I've experienced very cold weather, too. Sometimes you don't want to take a step. But if you're properly clothed, you can walk very long distances, even in -20 degrees Celsius. The young people, however, were quite experienced and daring. In very cold weather, you can walk very long distances, provided you don't get wet.