Interesting mix but what criteria?

The terrier tent at the Game Fair was a very interesting mix but nobody seemed to know what it was. There were Glen of Imaals, Sealyhams, Smooth Fox, Skyes, Dandie Dinmonts, Manchester, Irish & Norwich so the first reaction was the “so-called” Vulnerables but where was the Kerry, Lakeland, Welsh and Mini Bull? It wasn’t working terriers either. Does anybody know?