No examples and prose combining platitudes with vague, hand waving grandiose manifesto language is a big red flag.
It's got some horrible advice from the get-go: "One hundred clear screens is preferable to a single cluttered one." is terrible advice. One hundred screens for a task is an absolute disaster.
I think you are being too critical. Yes, examples would be nice but all of these principles seem very reasonable. Also the design is beautiful.
Of course "One hundred clear screens is preferable to a single cluttered one." should not be taken literally. The point is that clear screen is much better than cluttered screen.
I don't think it's terrible advice. He's saying that you shouldn't present more information at once than you need to for the task at hand, not that any single task should take 100 steps. It's fine to have 100 screens if they're well-organized; HN probably has hundreds of thousands of screens.
It's got some horrible advice from the get-go: "One hundred clear screens is preferable to a single cluttered one." is terrible advice. One hundred screens for a task is an absolute disaster.