Except there's a psychological element that most of you are forgetting - cabin fever is real, close living with a group of people of varying personalities and abilities is real, the wolf or bear stalking the cabin can be real (if that bugs you), the harsh environment and the long months of winter cold and dark will wear on you. I'm not saying that someone with survival skills can't cope, but put you in a smallish cabin for a few months with ongoing food and fuel needs and a half dozen folks of lesser abilities, you'll sure feel some stress, you need some coping skills as well. Physical ability or knowledge isn't the half of it. There's a reason why depression, alcoholism and suicide are endemic to the Alaska winter. Hardy folks, for sure. Disclaimer - I have no idea if I could be one of them.
If I had a complaint for the Alaska Project its not quite long enough to truly test the participants, but a longer duration show isn't marketable. And there just aren't that many Dick Proeneke's out there.