I don't like it when principles articles intermix general design principles with specific product values. It would also be nice to see how these things actually manifest in the design (you know — the doing part).
Often with principles I've experienced a lot of high-minded ideals with no way to tangibly implement them in reality. Those are bad principles.
101% agree. It seems to be a common problem with designers. We are often great at high-level thinking but struggle to map that into a detailed application.
Principles should be like Brand guidelines: Include do's and don't, show examples, and when to use.
Shameless share — I wrote a thesis on the topic Design Principles. It partly tries to look at them in connection to outputs and outcomes. Could be an interesting read: