The AIBN is of the opinion that this accident highlights the need for a change in the current training on initial stall recovery techniques, especially the focus on minimum loss of altitude at the expense of breaking the stall by lowering the nose and thus reducing the angle of attack.
The UK CAA made the same point in a safety notice to instructors and examiners in only July this year.
http://www.caa.co.uk/docs/33/130711_...Techniques.pdf
How widespread is the teaching that minimising height loss is more important than actually recovery from a stall by reducing the AoA?