This can maybe appears in the next BEA report ...
The people who wrote that article should be utterly ashamed of themselves. There was no "co-pilot" on the plane. All three were full up qualified pilots. Having a "co-pilot" at the controls in no way "guarantees" that it will have problems. Securvol makes the Le Figaro article seem sensible by comparison.
There may have been only one person at the controls at the moment of upset. Supposing that person was one of the licensed flight crew he was a pilot, fully type qualified with a not inconsiderable amount of experience total and in type. Not enough information has been released to say more.
edit: I feel filthy after reading that.