I read another review that perfectly captured my experience: "You must answer exactly what‘s in the interviewer's mind, or you won't make it." This interviewer might be proficient in his own field, but he has no experience whatsoever in the position he's interviewing for. The "real-life scenario question" they prepared appeared devised by someone unfamiliar with the field, despite thinking it clever. Moreover, the interviewer was late, asked me what role we were discussing at the beginning, and showed no interest in my background after I couldn't answer their "smart question", which was flawed from the outset.
Anyway, I'm glad I dodged a bullet. I wish the company and future candidates the best of luck.