I sing in the Scunthorpe Community Choir and they would never dream of doing anything folky, I have even provided music in parts as a suggestion but due to most choir members being very main stream, we sing musical numbers mostly.   I have loved singing in folk choirs with Sandra Kerr, CBS, and Stephen Taberner of the Spooky men and would love to perform this type of material on a regular basis but Scunthorpe tends to be a Folky desert as regards choirs.