If I ever buy a light GA plane, I'd love to have something like this for additional safety. Unfortunately in GA, there are a lot of safety innovations which never get implemented, due to strict regulations and cost. Things like un-stallable/un-spinable airplanes (like the Ercoupe or the Long-EZ), could potentially make the dreaded spin on the base to final leg non-existent, but they aren't mainstream because they're too expensive to bring to market.
It's kind of a catch-22; people are afraid of flying because of safety issues, but you need scale to spread the costs of making planes safer.
Seems to me that the main things keeping people away from GA flying are cost, accessibility, impracticality, and lack of interest.
Which is to say: GA is painfully expensive (how many people are going to start a hobby that costs $150/hour?) hard to find (how far away is your nearest local airport that offers basic flight training?) useless (how many people are going to get to the point where they can travel for business or vacation using their own airplane?) and not something people care about too much anyway (flying is seen as boring).
I'm not aware of many people who want to get into GA but don't because they're scared of it. I have seen a lot of people leave or simply never pursue it because of the rest, though.
It's kind of a catch-22; people are afraid of flying because of safety issues, but you need scale to spread the costs of making planes safer.
*edit: corrected typo