As Safety Guy said
Seems there's more at play here than a simple runway change, IMHO.
There may be 200m difference between runway 21R (at 12,139 ft) and 21L (at 11,461 ft) but surely either would be more than long enough in the hottest temperatures to get off....even with 10 kts of tail.
There are three types of Spatial Disorientation
Type I (Unrecognized): The pilot is oblivious to his or her disorientation, and controls the aircraft completely in accord with and in response to a false orientational percept.
Type II (Recognized): The pilots may experience a conflict between what they feel the aircraft is doing and what the flight instruments show that it is doing.
Type III (Incapacitating): The pilot experiences an overwhelming -- i.e., incapacitating – physiologic response to physical or emotional stimuli associated with the disorientation event.
Sounds more like the ultimate and most lethal somatogravic illusion - the pitch-up illusion
You go up - then you come down. Surviving to then get your comeuppance is a rare exception to the norm.