meself said
"Surely it's a matter of personal taste - should formal, ('white') church-y choirs sing five-part-harmony arrangements of folk songs? That sort of thing doesn't appeal to me in the least - but I'm not going to say they shouldn't do it: let them have their fun. "
Our choir sings mostly classical music but in summer we include a couple of those un-folky arrangements from the "Oxford book of Folk Songs for Choirs". Fun?