Most upsets are caused by pilots. Definitely so on Airbus. In normal law it simply cannot be put into and in alternate law the pitch is same but you got to keep wings level. UPRT training teaches you how to recover from upset. But how about training what causes upset and how not to cause an upset? Because if you don't cause it then it doesn't. Present case is an example. The crew set themselves up for a perfect upset but didn't know how to recover. AF447, QZ8501 no different.