It is relatively trivial to exercise perfect hindsight
True .. which is why most of us don't get too entrenched in Monday morning quarterbacking.
How do you justify an expansion of the pilot training program to include relatively rare failures at altitude
Certainly, one wouldn't head off down a path of kneejerk training reaction.
However, one MIGHT, as part of normal, prudent risk management processes, consider whether there could be a problem ?
I would have expected Flight Standards Management (not just AF, but any operator of the Type) to have put a small sample of line pilots into the simulator to observe what their responses might have been to such events ? The outcome of such an experiment might then have suggested whatever when it comes to training program variations.