I don't think I follow.

It suggests that succeeding in an interview requires you to be all three of competent, confident, and clever about demonstrating your skill. Only the first attribute is relevant to the job.

20 years from now, the idea of hiring programmers with interviews will be as weird as the idea of hiring an orchestra cellist with an interview.

Yes. The tech community has no trouble whatsoever understanding that getting good grades in school is overdriven by skill at taking tests, but somehow misses the fact that getting hired in tech is overdriven by skill at being an interviewee.

Just to be clear, Rayiner (upthread): my issue was, that candidate succeeded by being confident and clever enough to turn a straightforward question into an opportunity to put on a show for the interviewer. You're right, that's great. It sucks that the process required it, though.

I guess I'm thinking more from the other side of the table. I know several talented, hard-working people who had a hard time finding work because they couldn't "hack" interviews. It's a flawed system, but if you're a young person it's to your advantage to know how to game it.