Not only extends them, but compounds them because you have a non-deterministic human making changes to a non-deterministic computer system which is making changes to an existing computer system.

That's basically the problem of employing and managing people.

And look at how much effort our industry goes through as a whole to work around it! Managing people is harder than wrangling machines, even if the upfront cost to "train" and build the machine is multiples higher. Once a deterministic system works, it will keep going until a variable changes. The "problem" with humans is that our variables change like the weather and it takes a lot more effort and resources to keep everyone on track.

"If you just get out of people's way, then they'll do a good job and the right thing!" - yea, perhaps. But how much of "getting out their way" is more a product of providing meaningful ownership and compensation in the workplace? See the paragraph above. Good employees are expensive and as time marches on, their compensation will need to continue to increase at least with inflation, while the machine will likely become cheaper to operate over time as societal advances bring down the cost and complexity of operation.

Yup. And this is why I think the "last mile" problem in AI is basically unsolvable.