That's a bit of a strawman: I didn't say anything about the ease/difficulty of the role being filled, and I implied rote memorization was not meaningful.

To reiterate, interviews should measure good data for choosing between candidates.

That's not happening when the given problem is solve-able by an LLM using a human as a proxy, everybody's just burning man-hours of company/applicant time on interview-theater that isn't useful for making a decision. (Well, not unless the hiring goals include "willingness to jump through hoops".)