No, you are incorrect. There are several airlines that fly biz 2-2-2 (DL and CO come to mind). If you flew airlines other than SQ and UA, perhaps you would know this (Or perhaps outside Asia as I believe that Thai even does 2-4-2 in Biz).

As for the Airbus ad......do you always believe what you read?? Come on. Even my six year old educationally challenged nephew knows that the configuration is airline dependant, not manufacturer dependent.