It's coming from the Atlantic, so it makes sense that they'd pick people that the reader is more likely to identify with (people with higher education and incom

It's coming from the Atlantic, so it makes sense that they'd pick people that the reader is more likely to identify with (people with higher education and incomes). I didn't get the same vibe as you did from the article. It seemed a bit more about explaining what brain fog is and that it can be caused by COVID-19 as well as other reasons. After reading the article, if I knew someone who had brain fog in my life, I'd be able to better understand what they're going through and be able to be more empathetic to their situation, instead of saying something trite like "maybe you need more sun/vegetables/exercise." All of the things that you mention (poverty, lack of financial security, mental illnesses, etc.) are important, but I doubt it's possible to write an article that addresses all of those things.