Why wasn't TOGA tried? Did somebody stop you?
Why has it been stated (someplace?) that the sims won't reproduce stall conditions?
Organ guy, since I'm still awake, the answers are simple once you understand the principles:
TOGA is counterproductive in a stall. The low thrust line of the engines relative to the cg forces the nose even higher at high thrust levels. That is real bad for stall recovery.
The sims only accurately reproduce areas of the flight envelope that have had data collected by the manufacturer. Until AF447, no one had flown an A330 aircraft that far outside the allowed envelope. I expect the AF447 data is being used to make this terra incognita a bit more accurate, but it is not a complete data set as I understand.