Technical error ~ big time ~ they got a guy suffering from scurvy. However, they've been out there eating seal after seal after seal.
Seal skin is full of vitamin C. They'd been chowing down on something better than oranges.
Another technical error ~ these people living at the edge of the ice for tens of centuries probably had the same adaptation so many Sa'ami appear to have ~ the body does not, when chilled, protect core heat. It lets your blood keep flowing to your arms and legs to save your life. So, the guy who fell in the ice would not have gone unconscious in that water so fast. His arms and legs would not have numbed up and quit working.
He'd simply dogpaddled to the breathing hole he fell in and they'd pull him out.
He's got about 4 hours to live before he has to get warm and dry BTW. Ordinary white people only have a half hour or so.
I see technical errors in almost all these 'made for tv' documentaries. When the girl was brought along on the 'hunt', I knew where they'd wind up.
Hey, who you calling ordinary!?