Treetopflyer the FDR animation of the incident which I believe that you refer to shows that the aircraft did not spin. There was a pitch up during go-around due to the crew over-powering the autopilot (no force disconnect) which caused excessive nose up (auto) trim. The aircraft ‘rolled-off’ the top of a very nose high wing over (>90 deg roll). Although the airspeed was less than stall speed, the ‘g’ level, and presumably the AOA were low. The aircraft repeated the manoeuvre before the crew regained control.