Blaise, I think you are being disingenuous with this. You are backpedalling from your original stance which was 180 +/- 10 for beginners without much subtlety. You use science like a bludgeon, rather than the scalpel it is meant to be: each study a specific tool for a specific case.
To answer your question: I would not recommend a specific cadence (155 or 140) to anyone. I would just say: run at the rhythm that is comfortable for you. You can work on over-striding by increasing the volume you run daily and weekly. You can work on under-striding by doing sprint work. But don’t put a number on it. There’s nothing to back that up as a general rule.
