My experience is strictly VFR in a spamcan, but one thing I think that is very ill-advised about this statement is there is no information
at all with regard to what the chaps up front were seeing - the story as is totally confusing, unless they were massively disorientated.
So much information is missing. I would much rather wait, and can't help but feel this has stitched the late crew up a little bit. Presumably this scenario is well-covered in their training regime? I just don't understand. Something happened that meant they were not able to apply what they knew.
Edit: DT has report that PFD and standby ASI disagreeing:
Pilots battled with controls of Air France crash plane for four minutes - Telegraph