Well, I didn't say the Inuit live long lives. In fact I haven't been able to find data how long do they live when in their natural environment on traditional diets. But I suspect they don't live that long as it's a harsh environment. It's probably the same effect as animals in the wild vs in the zoo.

I checked all the studies in your link and didn't see anything to contradict the notion that they had healthy enough lives. First study is behind a paywall so it's hard to comment but the most damning thing in the abstract is "The mortality from all cardiovascular diseases combined is not lower among the Inuit than in white comparison populations". Shouldn't it be significantly higher when you consider the copious amounts of "unhealthy" food they consume (allegedly 5-10 pounds of meat per day).

The paleopathology study involves a grand total of 3 mummies, that all died from trauma, 1 of which was 53 year old woman with signs of atherosclerosis but otherwise no evident heart problems, 1 apparently healthy young woman and 1 woman with severe heart and other health issues, some of which the researcher suggests are the result of a bacterial infection.

The Canadian Eskimos study mostly talks about ailments related to their way of life - worn teeth (which were still in excellent condition!!), snow blindness and the like. No mention of degenerative diseases. In fact you'll see a comparison between "traditional" Eskimos and "civilized" ones. If you intended to prove how unhealthy the traditional diet is, this study says just the opposite.