How much impact does your AAoA have in comparison to your average age of open accounts?
FICO scores pretty much only care about AAoA. Vantage Skores seem to place an increased significance on AAoOA.
Remember also that banks have internal scores and things they look for that are not customer facing. Chase has 5/24 which is out in the open, but we also know that credit unions, Barclays etc get all distraught over new accounts even though they aren't stated policies. Even that doesn't have much to do with AAoOA, more just new accounts in general.