Or, more accurately, that there is more than one way to do things. Not just the KKW way. I'll agree that if you're doing the Taegeuk poomsae, you really should do them to the KKW standard. But that does not mean that the KKW way of doing ap kubi is the "correct" way in any other context. The way the Moo Duk Kwan teaches ap kubi is longer, wider, deeper and equally correct. If you're in a Moo Duk Kwan dojang.
That's true. I was talking about the Taegeuk forms, though.