As a case for the defence Big Al it is a very poor one!

A band from 1978 that has since broken up. Give them their due they make no pretensions of being "folk", a description I think they would run a mile from.

As for the song - certainly as disposable as a paper cup. God knows I hear more than enough of poorly "performed" 60s & 70s "hits" in what purport to be "folk clubs" but I must admit that, thankfully, I have never heard anyone attempt this candidate of yours. Must admit though the a cappella version would be a hoot, the WTF look on the faces of those present would be priceless.

I'll say it again - traditional folk music has never had to chase either audience or those willing to participate, playing or singing. It's popularity may vary but it has been around for hundreds of years and I dare say it will continue to survive.