Tyke,
That sounds a rather formal way of running a club; I don't think I have ever been to one that has been set up on those lines.
The three I was involved in setting up and running were all started when enough like-minded people came together.
Even the Singers Club, which was sponsored by the Co-op was run on more-or-less mutual agreement - the direct contact with that organisation was via an annual meeting to discuss finances, premises, etc; no policy statement, no election. There was an audience committee made up of volunteers, but that was the nearest we ever got to a formal organisation.
I never heard of the CP sponsoring clubs, for political purposes or otherwise, most CP members I knew who were involved in the music were interested in it, those who weren't always struck me as not having a clue about folk music.
I (mercifully) can't remember the details of Mike Brocken's book on the revival, which struck me at the time as very poorly researched, but I don't think he came up with anything resembling the set-up you describe.
There was a radio programme on the history of Topic Records (Little Red Label), which dealt with politics and the early revival - must listen to it again.
I wonder what would happen if somebody sang songs in favour of the BNP, racism or the concentration camps; never known it to happen. I did hear that Eric Bogle was punched by an audience member once when he sang his anti-racist song 'I Hate Wogs'.
Jim Carroll