I think it's fair to say my focus on control surfaces might be annoying. If so, I simply find BEA's explanation wanting. I would like nothing more than to simply say, that's it!
The colored surfaces in red of the missing controls say quite a bit. It is possible of course that the airliner just sat in, with the VS equilaterally driving vertically down into the tail's support structure, then being spit out, with only a leading edge squash left instead of shrapnel, (spoiler). Then too, takata points to a lack of hydraulics problems on the ECAM. As the linked essay states, the comparable "peace" of a deep stall, potentially cueless, (compared to buffet and airstream noise of other ua's) might have been the last attempt to establish controlled flight. Controls that require airflow parallel to their surface are useless in vertical mush. Especially when trying to move a stubborn 150 tons
I have some folks working on animations of possible paths 447 took downward.
I'll look at them and decide if they are appropriate.
bear