The article points out failings of political/cultural elites as a way of casting doubt on the competence of scientific elites. The analogy is false,

The proposition that the vaccines are safe and effective, and predictions around Brexit or Trump, come from completely separate fields. The two "elites" in those two fields hardly ever overlap, use very different methods, have quite different histories and different internal cultures.

But the author did a very good job of it. Well written garbage.