Since there are so many comments - mostly helpful and supportive - I would like to respond.
Thank you funnyperson for having understood what I am getting it. DD said that she didn't remember anything about the text, but I'll post again if she recalls the content. This is all coming out six weeks after the interview. It is something that she was uncomfortable about at the time but has only just shared with me.
Livia you have completely misunderstood my point, which is probably because I haven't expressed my question very well.
My question is this: given that DD had stated that Classic FM, with the implication that it is a specialist music station, ought to be considered a fairly reliable source, the follow-up comment-question from the interviewer was "But who listens to Classic FM?", expressed in a way that made DD feel humiliated, as if they had said, "Anyone who listens to Classic FM is uncultured and simple and doesn't belong here". Was this fair? I don't think so, but rather it shows a judgement on the part of the interviewer.
In this context, "Well, I do!" shows great confidence and I am proud of DD for sticking up for herself. It is the tone with which they asked the question that I am objecting to.
Thanks, Gently, Littleham, Molio and MS for your support and for allowing me to discuss this here. As a pp said it was probably not decisive but must have been one of several elements that made those two interviews think that DD would not be a good fit with that college.
We'll put it behind us. Another offer came in yesterday, which DD is thrilled about. I am on my way the other thread, via a Scottish isle.