Music hall was seen as crude and vulgar, without much artist value and was gripped about, much like with pop, but it didn't ruin folk music, so I don't think folk musicians adopting elements of pop will either. Much of it will be crap, but that is down to musicianship and is well worth the gems that we'll get, as well as making it more accesible.

You don't see much trad music being mimed, do you, so not sure what the point is. Besides, you can't mime on a recording!!!