Welp, this was silly. Here's how a smart person would have done it
If anyone has a metal hook, you could just secure it on your belt, then wrap someone else's belt over the cable and on the hook, and down you go.
Course the cable is all razor sharp so the belt could break. In that case just add more things to the hook, like the goggles they were wearing. Or you could make sure that the part of the belt that's scraping on the cable is the beltbuckle.
Before you say 'But they didn't have a metal hook!', no. Even if you don't have a certified safety hook on you, you could still improvise one. Their ski boots are full of hooks.
The worst part would be the wolves. I think if two people can get down, they can fight them off.
The second person would get down very easily, even easier than the first person. Climb on to the cable as if you were hugging the cable. Then tie your belt on the cable (still on you). Then shimmy along, still in a monkey sort of hugging position. You can use your legs and boots to push forward and your hands will be fine.
Then they both fight off the wolves with the skiing gear. Maybe I'm underestimating how strong 5 wolves can be, but I think two grown men could handle it. Once the wolves realize their prey is stronger than them, they'll run away. It's not like they'd have to kill all 5 wolves. It's just a power struggle.
Then they make a safety net with their clothes, and the 3rd person can jump down easily.
There you go, all three of them safe, no wolves. This took me 20min to come up with, tops.