IGH - my initial 'simple' solution (which will not suit all, I know.........) is based on the fact that we need to retain the ability to trim ALL stages of flight, including very low speed, but that we should have:-
a) A warning that we have gone past 'sensible' with a possible 'stop'
b) A requirement to actively over-ride the stop when needed.
It appears to be the 'un-noticed' extreme trim position that is causing the problem, so let's 'notice' it, loud and clear and obviously?
This is not a big technological challenge.