Did the candidate get an offer? Genuinely curious.
I had a basic screening call fail once because the expected answer was (in my perspective) more naive than my answer. I'd love it if generating curiosity were an interview +1.
Whether they got it or not probably isn't useful information. Having a good/brilliant answer probably isn't the only point of the question, this probably wasn't the only question of the interview, and this probably wasn't the only interview