Every time I do JFK in the simulator I get taught something different, very often by an instructor who is confused as to what is the correct procedure for this specific phase. We are so over-endowed with procedures, standard calls, techniques and FCU fiddling that we have turned what is a very simple approach and all other NPA's into an 800 pound gorilla, waiting to fall out of a tree.
No doubt the independent Fleet investigation will hone in on exactly what procedure was not followed, once everyone involved in the event have been punished, focus will rapidly shift to the next big event. My sympathies to the crew involved, may the force be with you.