Sunny - this goes well past CRM issues. What we appear to have had here is a complete collapse in the survival instinct from the F/O. I cannot understand it and from my (Western) military experience I cannot envisage any current or ex-miltary pilot allowing him or herself to be wiped across a hillside just because they were 'upset'.
I do not think ANY amount of MCC/CRM/psychology-whatever-you-call-it training would prepare someone for this scenario. Surely it comes down to a basic survival instinct? At what point do you expect 'folk' to recall that?