The Captain and FO did an outstanding job, as did the cabin crew who executed a seamless evacuation.
This was a curve ball anomoly. Not specifically trained for, which at times must have defied all natural instincts of the pilots.
By all means once the final report is out, any responsible airline will analyse the data, and attempt to train crews with a view to mitigating against such anomolies if they were to occur again. Without the experiences of crew who were left to make a horse race of it on the day, how would we as an industry come so far in terms of training systems delivering such high levels of safety?
Specifically in this case, the end result speaks volumes for composure under immense pressure. One "wrong" decision, would have ended in disaster. There was no disaster, therefore no "wrong" decision.
I know the Captain well, and have heard the sequence of events straight from the horses mouth. It would indeed put the hairs up on the back of any experienced Airbus pilot's neck. One minute a potential ditching, next elation at securing a level of power ensuring arrival at terra firma, to again faced with a prospect of ditching or overrun...
I'd be really careful with too much open uneducated speculation - some here are hovering on borderline libel.