Hi HazelNuts39,
All PF's previous experience in Normal Law in roll was mostly useless when faced with Alt Law.
In Normal Law, a small deflection of the SS to the left would have immediately commanded sufficient aileron (up to max deflection if necessary) to arrest the roll to the right and provide a slow roll left.
In Alternate Law a small deflection to the Left would have merely reduced his roll rate to the right. He would have needed more SS deflection to the left than he was used to. Relaxing the SS would have allowed the aircraft to roll right (rather than reduce the roll rate to zero in Normal Law). He has no aileron trim to reset the balance point, and probably only ever used the rudder trim when he was last One Engine Inoperative (in the sim).
He had to relearn Alternate Law handling characteristics quickly. How much he had to learn would depend on the last time he had practised the procedure at Altitude. When was that I wonder?
Once overloaded, he lost the plot with pitch attitude.