Surely
1. If the VS and Rudder become detached they take the hydraulic fluid and therefore power with them unless there are rapid shut off valves in the lines. If there was no hydraulic power to the flight controls and no rudder to provide yawing stability whatever the crew do after that is of little consequence.
2. On a Boeing Rudder Ratio ensures that full rudder cannot be put on at high speed, I would not expect Airbus to be any different. There really cannot be anyway that gross mishandling could even be considered as a cause.