"I never found the Singers Club sterile, but there again, I only went to the place for nearly every week for about twenty years, so what the hell do I know?"
If i were to make a judgement from that comment, I would say you know sweet f a, since when has going to a place many times been any criteria for making an objective judgement?.
you obviously liked the place, so   we should not be surprised that you did not find it sterile, however the Singers Club no longer exists. Islington Folk club and Musical traditions two clubs that Bob Davenport was involved with are still going., this is not opinion but FACT.
"I don't "hero worship" Ewan"
It is my opinion that you do.
I agree with you, he was a fine songwriter and a polished performer and an excellent presenter of his material, I also think his idea of using vocal warm up exercises was very good.
I think the UK Folk revival is indebted to the early song carriers such as Alex Campbell, Davenport, MacColl. Lloyd, Carthy.
I did find him arrogant on at least one occasion, on the other hand I could relate incidents that showed another side of his charcter , his helpfulness and kindness.