Nah, AJ got over by herself. There have been divas involved with Bryan in the past and nobody cared. Punk has teamed with other divas and nobody cared. Some of AJ's most over segments didn't involve either.. they involved Kane.
AJ's done a good job with developing her character and the writers have done a good job in giving her the opportunity to do so once they realized people were into her.
With that said, AJ is not more over than Punk and Bryan. She is, however, more over than a lot of the guys on the roster and all of the divas so it's a good place to be.
But before Bryan AJ wasn't over whatsoever. In any way shape or form, she was a part of the Chickbusters with Kaitlyn and no one cared about her at all. The fans started to care about her because DB was trashing her and doing great heel work.
I agree that she is more over than most the guys and all the girls. She just wouldn't be there if it wasn't for Bryan