Lemain
Any simulator should behave the way the aircraft manufacturer designed the aircraft to work and how they believe it does work as built. MH370 is so bizarre with no really credible or incredible (except aliens?) explanation I question whether we should place total confidence on the sim for this disappearance.
I'm not sure what your point is in bringing this statement about simulators?
Any simulator is limited by both the assumptions of the designer as well as the limits of its manufactured fidelity. They do a fair job in training (a long way from being exactly true under all combinations) I would trust the simulator up to the point of upset within normal operating limits, but nothing more.