[BoredPuffin]

I didn't read/listen to Haidt's The Happiness Hypothesis, but from what you described, he sounded spot on.

But can I also say that as long as it works, there's nothing wrong with it?

Some people wind down by jogging, playing video games, watching action movies etc; yours happened to be reading self-help book.

The problem is when one overdoes it, regardless of the activities they've chosen.