4% of calories as PUFA or 15%?

Some Eskimos in their sample got as much as 15% of calories from EPA+DHA.

From the (ongoing) fascinating series over at Perfect Health Diet on total serum cholesterol in hunter-gatherers.

So much for the idea that 4% of calories as PUFA is the upper limit that we should aspire to?

Getting 10% of calories from linoleic acid is probably a terrible idea, and getting lots of omega-3 from potentially rancid, isolated, industrially produced fish oil is probably a terrible idea (although Robb Wolf and Dan John and Poliquin and a few others still seem to be keen on megadosing fish oil, at least for a few weeks/months).

I wonder if getting 15% of calories from actual marine animals is not that bad after all, or at least not as bad as getting 10% of calories from soybean oil.