I haven't looked into it, but I heard about it via the YouTube channel Not Just Bikes whose creator makes videos based on his experience and on his reading of Strong Towns. Starting point: https://www.youtube.com/watch?v=y_SXXTBypIg
Disclaimer: I'm a dirty European with a natural bias against American suburbia and I haven't read the strong towns book. Also strong town's presentation looks a bit like a cult but that might just be my impression.
So from the start article never was about suburbs. It was about people and social dynamics.
The actual interview spends most of its time focusing on how malls aren’t that useful anymore, and now that they’re changing to be useful people are moving back out to the suburbs. But the core idea of the suburbs: large SFU homes on large plots of land is never questioned.
Pretty much the answer to any question about why a headline's hook doesn't land in the meat of the article. They got what they wanted from you.
the defining story of human geography in the last year is a movement from cities to suburbs
despite that, "people want dense cities" is an evergreen meme on HN