They wrote
> It's more like owning a job than running a business
And I like that analogy for its illustrative purposes
As the business couldnt be sold or the key person couldnt be replaced economically, or at all [1] for it to become passive
I think all of those businesses you used as an example are also bad businesses, akin to owning a job
[1] If I was that person I would probably attempt fine tuning a language model on my writing style and churning out more since the brand name is the valuable part, or at least consider it