either something has been shonkied through the certification process
or
the design standards aren't up to snuff
or
the air has more energy in it than previously thought and the design standards relating to strengths need updating.
as I mentioned in my post on the truss thread I think the pilots were competent.
VARA are competently operating the aircraft.
ATR have designed the aircraft competently.
so either I am wrong in one of the three assumptions or the design standards are in need of urgent review.
I think you may find that your assumptions are wrong.
Wait for the final wrap up!
You cannot arbitrarily discount some of the factors to make things fit.
How the aircraft was flown needs to be considered!