Whatever The Corries are doing to the song, I am not impressed. That speed and meter just don't seem to me to 'fit' the mood of the song.
I know, sometimes it's the 'first' version you hear of a song that sets your preferences, but having heard maybe 20-25 people & groups sing it, I just prefer the slower, quieter ways. It doesn't have to be precisely an imitation of The Coppers, but they had the right idea.

(Those who have have heard my wife do it with zither may know what I mean...*smile*)