I completely trust the answer that Creed gave. If there were different plans, we would have known by now.
I trust Creed as well but I also do remember Barron saying the BASH cards were originally planned to be ECW but changed at the last moment for whatever reason. This could be the remnants of a jumbled memory cache though.
I'm not doubting him either. but I remember always enjoying reading the playtesting notes when they came out and I do fully remember the BASH cards being ECW ones too