When questioned, the FO defended himself by saying that "the AA Advanced Aircraft Maneuvering Program directed him to use to rudder pedals in that manner"
I had this training program inflicted upon me in the late 1990's during sim training.
Probably a matter of interpretation by the sim instructor but I repeatedly raised the BS flag and questioned whether such agressive rudder deflection was appropriate in an airliner. I was assured that it was.