My experience is that if the demonstrated source of a song confirms an individual's gut feeling or bias, they are likely to say that origins matter. If not, they are more likely to say origins are less important than where the song has been along the way. Yes, it is often a turf war. Personally, I like to know as much as I can about my favorite songs and ballads, but I understand why for some people this sort of thing may take some of the fun out of enjoying traditional music.