I agree.
I was a kid at the end of the Wigan era but was brought up thinking Northern could be anything from The Deadbeats, Mari Wilson, Cecil Washington, ZZ & Co, The Vibrations, The Seeds, Charles Mann, L Allen, Charlie Gracie, ... whatever, just great black music.
Other nights that followed pushed the boundaries of certain area's of underground soul - Stafford, 100's Club, Rotherham, Morecambe, Bradford etc but I was grateful for the grounding I got at Wigan. Fair enough, there was a lot of unrest with the punters re what was being played I suppose, but thank Christ the lads playing the music stuck to their guns - surely no one on this scene isn't grateful for hearing something outside their normal 'soulful sphere' at a nighter.