It would be interesting to see one of these evals and how it generated the score, to work out whether it is in fact arbitrary or based on some scale of points.

I found the summary above devoid of useful advice, what did you see as useful advice in it?

> if you don't understand that their primary goal is to produce plausible and coherent responses rather than ones that are necessarily correct (although they may be - hopefully).

If you really believe this you should perhaps re-evaluate the trust you appear to place in the conclusions of LLMs, particularly about their own workings and what makes a good skill or prompt for them.