I suspect we will discover this aircraft encountered severe/extreme turbulence resulting in an upset/subsequent loss of control situation, where as Air France 442's (data anyway) didn't reflect any significant turbulence encounter, just an incorrect response to airspeed unreliable, due to defective Thales pitot tubes, a situation encountered previously by a Northwest A-330, which the crew successfully handled and continued onward without difficulty...the look of that storm Air Asia appears to have penetrated could very well have have caused the weather radar to attenuate, presenting a false impression the way ahead was only a thin band of weather when in fact it was only reflecting the leading edge of an extreme cell, and being over water it would be impossible to tilt down and verify by looking for a ground return behind the echoes...