This really is the problem. And I think it leads to a lot of the dysfunctional interview behavior that we've all seen. Interviewers are having to make up their own evaluation methods but really haven't thought through what the acceptance/rejection criteria should be.

I mean, we have things like the SWEBOK (https://www.computer.org/education/bodies-of-knowledge/softw...) that could be used to build a set of interview questions and acceptable responses, but does anyone use it for that?

The best interviews I've had, either as the interviewer or the candidate, have been when there was a discussion and a free flow of information in both directions. Unfortunately, it seems that in a lot of places, this degrades quickly into a hazing ritual.