So the answer is let a deaf pilot spin you into the ground? I think an airspeed call (shout) would have been appropriate in this instance. x amount of hours shouldnt come into it.
The stall warner is there for a reason, if its constantly blurring during a turn you are approaching or at the stall. If the guy flying cant hear it and there is no visual indicator article 142 wont get you out the !!!! that is potentially developing.