I love this interview, you really get to understand the personalities of Deborah and Zack. As far as the questioning is concerned I thought he did a poor job. Let me explain, I thought the interviewer assumed to many things about Zack in particular. If you think that way your interview will fly right back in your face. Ask the question first to see if your assumptions are correct then proceed with the follow up question. You can really rub the people you interview the wrong way. If you want to get that kind of reaction for a documentary then do it. But for an information piece, ask open ended questions that allow the people to explain how they feel.