So, once STALLED, there would not only seem to be no need for all NU from the THS, but that it would be highly dangerous to leave it there.
With a continuous STALL warning, one would hope a 'smart' a/c would return the THS to neutral, and allow the Pilot to recover with elevators.
Since the speeds had returned, it becomes especially apparent (to the aircraft) full up THS is not a good thing? No alert, no lowering the THS,
So, you're advocating more automation? I'm not disagreeing here... I actually think all the information required to help the crew was available.