[wlug] RNZ--No More Ogg?

Some years ago, Radio New Zealand started making its audio downloads available in Ogg Vorbis format, as an alternative to MP3. As I recall, this coincided with a visit from Richard Stallman, and no doubt his persuasiveness had something to do with it. (Checking the timestamps on my downloads, Stallman was interviewed by Kim Hill on “Nine to Noon” on 9th August 2008.) I was revisiting the Mediawatch page after a long absence <https://www.rnz.co.nz/national/programmes/mediawatch>, and I see they have reverted to MP3-only format for their downloads now. Were people being confused by .ogg files? All the open-source players can handle them, so what players were they trying to use?