As a tactical jet type pilot, the flopping around of the aircraft depicted in the animation instruments is sufficient to identify a stall. I've seen that type of movement before many times.
Too bad none of the guys in AF447's cockpit had ever full stalled and then recovered a jet.
There have to be a number of swept wing former military trainers that could be made available to teach the subject of jet stalls to today's overprotected, computer swaddled, crop of pilots.
I doubt the airlines will fund such training voluntarily. They would have to be directed to by the regulators.