Lets say I said to you there were 3 applicants for this job, 2 were called for interview, one man one woman. How do you have any personal data which would help you identify anyone (apart from Jason Grant) from that?
It wouldn't but as Jason's CV is now public DCC would not want the other interviewee to know they lost in a contest of two, particularly if they suspect the employment process was corrupted by a personal relationship. If the other candidate or candidates could demonstrate they were better qualified or had more relevant experience then it could open DCC up to further legal action which may expose corrupt hiring practices.
I think they're less worried about the public finding out who the other applicants were and more worried about the other applicants finding out how small the field was.
I think DCC will settle to avoid scrutiny in a court.
It's a mess.