Checked it? I posted on it! (Borrowed from a more popular expression!).
Fair enough, design should change - show me the money. But lets be realistic, it aint gonna. Especially for such a straight forward issue that occurs only during the harshest flying, is easily recognisable, and has a simple recovery technique. Easy to demonstrate and easy to train for.
Lets reserve the redisgn dollar for much bigger killers that are complex - like CFIT.