"These things are not intelligent. They're just tools."

Correct. But they are being marketed as being intelligent and can easily convince a casual observer that they are through the confidence of their responses. I think that's a problem. I think AI companies are encouraging people to use these tools irresponsibly. I think the tools should be improved so they can't be misused.

"Incidentally, those structures are also the sorts of things that greatly benefit human programmers."

Correct. And that's why I have testing in place and why I used it to show that the race condition had been introduced.