After reading the article I am left with a more simple reason for the accident.
It was the result of crew incompetence.
I can not recall ever starting a take off roll without checking for full control movements, and normal if the flight controls were visible.
Sooner or later you may find the controls will not move, it happened to me many years ago, we had gone to town to eat between fire bombing missions and just prior to entering the runway the ailerons would not move when I did the controls free check.
It was very embarrassing having to ask the tower for clearance back to the ramp to remove the aileron gust locks that the mechanics had put on while we were in town eating.
Failing to do a proper walk around was negligent but the ingrained controls free check caught the locked controls problem before we started the take off roll.