Ok folks, thanks to you all for your responses.

Perhaps 'Blackleg Miner' was not the best choice of song, as I'm well aware there are questions over it's provenance. (I chose this particular video because it is a professional production and therefore a good reflection of the actual live sound, rather than something videoed on someone's phone)

Thanks again for those that have said good things about the song, but I was not looking for opinions on the band, or the performance. What I'm wanting is comments on the general principal of whether folk/rock makes a traditional song meaningless, (I suspect Jim's comments elsewhere have more to do with his dislike for anyone 'messing' with his tradition) or whether it is a valid way of maintaining the tradition, and bringing traditional song to a wider audience.

John