Personally I feel that there are many twee voices around what can looseley be called the 'folk scene' that for some reason or another get a lot of coverage the above mentioned Cara Dillon for one, the flat monotonous voice of Kate Rusby is another and the forgettable trio from Canada the Be Good Tanyas. I find the last particularly unbeleivable.
I do not listen except on very rare occasions to any smooth ops programmes, mostly I'd rather watch paint dry.
I have no reason to support smooth ops but as they are apparently an independent company then the have to supply a product which they can sell to the BBC. I believe therefore it is ultimately the BBC which is responsible for giving us such crap programmes. Even going back 30/40 years the instructions to singers at the BBC when doing two songs was; "One light, one bright!" Will they ever learn? I doubt it.

Incidentally as an anti-dote if you live in the London area you should if possible tune in to 104.4 FM on Thursday afternoons from 2-3pm.
There you get real music from knowledgeable people such as Reg Hall.