Oke, howdy.
For the thick and the less than quick, like me, what do you have to describe as to the initial PF inputs post a/p? Bonin 'saw' (via BEA) ND and RR, to which he responded per report. PJ2 early on initiated a very important discussion that weeded out most here as to what the manual response should have been, eg, do nothing, maneuver, or deselect FD, and call the book. Arrest any poor trend? Attitude, Airspeed?? Pitch/Power?
I think, imo, Bonin did the right thing, which evolved, for reasons as yet undetermined, into a "climb" into the sea. There is a beginning to everything, where do you sense this point to be? For instance, the VS was "selected" by the a/c, at 5000fpm down. Since the a/c was rolling to the right, I assume the a/c was commanded so by the a/p, or the airmass was insinuating itself into the flight path. What gives?