I’ve seen people go through the pipeline with “no hires” from interviewers because of small differences of opinion. In your case, I’d wager that the disagreeing interviewers feedback may have just been discarded.
They didn't fully clarify what kind of feedback the interviewer likely ended up giving in the end, though. I'd be curious to know if after they Googled it the interviewer acknowledged he was wrong and the interviewee was right. (I think they're kind of implying that, but it's unclear.)
Late but, for the record, I did get positive feedback from that interview, and the interviewer admitted his mental model was wrong.