Sully did a good job under the circumstances but he had to thank his lucky stars that he had heroes/heroines on the Hudson coming over to effect a quick rescue. Had this been in a remote airport or open seas without the ferries and boats nearby, then any lost of lives or injuries would have caused a VERY DIFFERENT outcome. Then the very difficult questions would have come about the " ditching " switch. The insurance lawyers would be asking very very difficult questions.
The whole episode was caught on camera and the media had made Sully a hero...........Americans love heroes and I am sure this has made the FAA and NTSB shy away from very difficult questions. Make no mistake, Sully's navigational situation awareness was superb and he deserve the accolades for his piloting skills BUT THERE ARE DIFFICULT QUESTIONS!
In other countries the nit pickers in the regulatory and safety bodies may not be so kind.