TC says he is well-prepared for interviews, that he has read this book and listened to that interview of the current guest, but then asks questions that are way

TC says he is well-prepared for interviews, that he has read this book and listened to that interview of the current guest, but then asks questions that are way out of the interviewee's circle of competence, interests, or knowledge. "Do you prefer this conductor or this other one?". And the guest has never listened to either of them. Similar questions are asked at every interview, and sometimes several times during the same interviews. To me, it sounds more pretentious than prepared.