"the source of the song is its Traditional Wellspring, the nature of which is very different from that which we find midst the various orthodoxies of The Revival, however so sanctified (and sanitised) they may be."

I disagree, not because I think that revival singers are raising what they do on a pedestal by calling it traditional, so much as because "the tradition" is a meaningless expression that attempts to describe a very nebulous, uncoordinated, diverse and changing assortment of activity by all sorts of people spread over a long and ill-defined period of time.

One of the worst "orthodoxies of the revival" is trying to put "the tradition" into a museum case and define it, especially as something that happened in the past in a uniform and consistent way.