The seizure programmed into the simulator is to train for a severe engine failure scenario (loss of N, High EGT, vibration accompanied by severe yaw).
The FADEC programming boost is unique to the aircraft installation and is power sensitive. The two are not necessarily the same unless the operator requests the training match the same scenario (The simulator programming matches whatever the training spec calls for).
It's not necessaily a bug in the programming, its just a missed opportunity
Even the SAS pilots didn't know that their MD80 engines would advance into an overboost when they ingested the hail since their training never accomodated that combination.