The most telling photo to me is this one.
About the only scenario I can imagine that would result in a jet having this much bank so close to the ground and away from the paved runway is a stall. (For the non-aviators, a stall is when the airflow over a wing is disrupted. Stalls commonly occur when the angle the wing makes with the oncoming air gets too steep for the speed it is traveling.) When one wing stalls before the other, it will drop and cause an abrupt roll and subsequent change in direction. The solution for a stall is to add power, lower the pitch of the airplane to decrease the angle of attack of the oncoming air, and level the wings. Typically that results in a momentary loss of altitude. Unfortunately, that solution doesn't work when you are as low as was that airplane.