Didn't feel like a misdiagnosis to me. My spouse around 2017 was one of those that got sucked into a course to earn income with an Amazon store. As I read the article basically every point resonated with my experience.

The dog walking business example was also appropriate in my mind. My spouse fortunately broke even, minus time, on her attempt with drop shipping garbage nobody really needs. Now she makes decent money with her oil paintings. Not "passive income" but real money and profit. Not enough to retire (that's what I am for!) but actual money nonetheless.