> Two of them knew they were extrapolating ("because Habsburg") and did it anyway.

You seem to imply that they ought not to. I disagree.

I wasn't familiar with the term before this post. Having learned it, were I given the task, I think I'd be strongly tempted to do the same extrapolation.

> If you're deciding which model to trust with instructions, "how much does it embellish beyond what I asked" and "does it behave deterministically" are directly practical questions.

Agency is agency. You still need to vet what the model's output is actually permitted to control.