Meh. First, the articles cited all have the same familiar problems of statistical psychology studies - small sample size drawn from psychology students.

Also, unrelatedly, I find ancient stories in many cases better than modern ones because of modern literary fiction's obsession with recording the minutiae of every character's thoughts. As the article notes, in one short story David Foster Wallace takes 12 pages to record a boy walking to a pool and jumping in. I can see the case for representing characters' inner states, it's an important part of the story, but modern literary fiction takes it way too far.