Watching a Dak take off 3 point is pretty worrisome. It is possibly technique related but I would be certainly looking closely at loading, and control integrity/jam etc.
All this drama was technique related. It will eventually all fall down to lack of proper training.
A link already posted, explaining a few things about this accident.
Dan G. should blame CAF's accounting department instead of the FAA.
Nothing, besides money, could have prevented more "appropriate" training.