I listened to the program with a couple of non 'folkie' friends, deliberately, to get an unbiased response. The consensus was that Ewan came across as an arrogant, opinionated bully but they loved his 'pop' song sang by Roberta Flack.
Personally, I think the program was a hatchet job on MacColl, damning the man with faint praise, with Martin having his tongue firmly stuck in his cheek. A couple of questions: why was a man with the stature of Martin Carthy not invited to join the Critics Group? Did his friendship with Bob Dylan exclude him? Or maybe he had no time for the CG which would make him a peculiar choice as presenter.