And the other alternative would be, instructor badly screwed up, needed a scapegoat and is now busy trying to save his neck! but hey, it must have been the student, because he is from the mid east, right?
Well there is a middle of the road answer as well
Both pilots were arguing about the approach and each fought to take control. Only one survives as the source of an explanation.
I just don't see the importance of this part.