Self-help books are based on first telling you you have a problem, then selling the solution. I get that some are actually correct, but the industry as a whole can only be sustained by inventing new problems and/or making sure newer generations learn about existing ones.
Ferris is a self-help book author, and while I kinda get where he's driving at, it also feels like he's just doing the same thing again, but meta - overconsumption of self-help book is like a dog chasing its tail (or a snake giving himself a BJ?), here's a solution. I'm somewhat surprised it's just an affiliate link blogpost instead of a whole book.
I agree with your assessment.
Tim Ferriss has always been good at identifying the next trends in the self-help space and positioning himself as an expert for trending themes. I think he might be acknowledging that self-help markets are saturated with all of the life extension influencers trying to one up each other with their protocols and supplement stacks.
This might be a trial balloon to see if this topic has legs for another book or product.