That makes no sense. If I'm a muzzy...once my buddy is gone to the bathroom (or whatever he was doing) I dive that sucker straight down and we're done...especially when I know he's trying to get back in.
That aspect of the terrorism angle doesn't make sense to me...which leads me to believe there is another explanation.
Could be the strikes....
Airbus flight control software prevents a full nosedive, the plane was descenting as fast as the software would allow.