It's not necessarily what everyone wants, though, is it? Otherwise we wouldn't be complaining, and festivals like The National at Sutton Bonnington and the Intervarsity Folk Dance Festival (they have everything from medieval courtly to global trance) wouldn't exist. Perhaps the music played on broadcasts from festvivals such as Cambridge isn't always that acurate a reflection of the festival as a whole.
Personally, I don't have a problem with the sort of variety of music heard on Mike Harding, because it's trying to reach a very broad audience, many of whom really like Kate Rusby, Cara Dillon, Martyn Bennet, The Be Good Tanyas &c &c, but aren't so interested in slightly more obscure (for want of a better word) stuff. Or perhaps that's what the producers believe, and aren't adventureous enough to experiement at bit more.
I do however, also want to listen to broadcasts which are a bit more challenging, which play music I don't think I'm interested in (and then I find that I am). Radio 3 is doing this brilliantly at the moment.
Yours,
Jane