Most popular business books are like this. They have an idea that could fit in like a single chapter, but have to write a whole book about it to get paid, so they pad it with numerous anecdotes and their entire life’s story.
I wish there were more reliable ways to monetize for authors between clickbait and published book. I know there are many paid Substacks and newsletters out there, some of which are really great. But I feel like you need a lot of luck or self promotion skills for this to work.