For really low temperatures some of the traditional materials work really well. For example, at -30 °C you don't need a waterproof shell but you want something that's very windproof and breathable. So at the British Antarctic Survey in the late 90s we were still using cotton Ventile[0], it's tough and effective.
This is the ultimate refutation of the article in my opinion, the people who do this stuff professionally are still using traditional materials where they make sense. We did not forget about wool as a species.
[0] https://en.wikipedia.org/wiki/Ventile