given sufficient aileron authority, the abnormal attitude will not be reached in an Airbus FBW system, as the envelope protection is trying to level the aircraft while the wing is being dropped. In a Boeing, the AP will disconnect as soon as the AP detects insufficient authority, similar to giving the control column a good yank with AP engaged. It'll disengage rapidly. A wing drop due to wake turbulence in an Airbus thus will be slowed down compared to a Boeing. Difference in philosophy.