I seem to remember reading like 4 or more years ago, that there was an experimental autoland system actually powered by that software, and could autoland in a dead stick situation.
EDIT: Found the experimental engine-out auto-land system based on the same technology as xavion: It is called the VP-400 by Vertical Power. I'm not sure if it ever became a purchasable product.
We can require more training for GA, but the training burden is already pretty high, and the GA industry is still shrinking last time I checked. Boosting safety requirements in the form of additional training for GA may save a few lives, but also those gains could be simply because there will be fewer hobby pilots.
The fact is that GA planes falling out of the sky just doesn't kill very many people. It obviously feels terrible to the families involved in a crash, but relative to automotive deaths, lung cancer, murders, etc, it is a tiny tiny blip in the numbers. Obviously being a GA pilot boosts your chance of dying in a small airplane crash, in the same way that learning to ride a motorcycle boosts your chance of dying in a motorcycle crash. The alternative of killing off recreational flying, is worse.
"The routing algorithm determines a path to the Final Approach Fix (FAF) of the chosen published approach that avoids terrain, obstacles, and significant weather."
That handles all of your contingencies except an engine failure. If you have an engine failure and a pilot who can't dead-stick a landing you're probably screwed. But you're still no worse off in that case than you would have been without autoland.