The difference here is he was not supposed to be interviewed, he was offering background for an entirely different piece, and they turned the discussion into an "interview" after the fact when they presented pieces of said material claiming it to be an interview.
if you talk to a reporter for a story, you're being interviewed. Let me rephrase, if I was talking to a reporter and the conversation was being recorded, I would presume I was being interviewed. If the reporter told me it was off the record, I would not consider it an interview.
