"If you flex or bend a piece of metal long and often enough, it will fail".
I hate to see these threads divert so far from the factual subject at hand.
The metal fatigue is a fracture mode and not a failure mode when it comes to complex structures like aircraft. It is well known that many parts of the aircraft flex, bend and crack in metal fatigue all the time. The idea behind maintenance programs is to find the big cracks that have grown beyond acceptable limits. Since no new factual information has surfaced this idea is just another form of idle speculation.