I’m aware they’re not using a generic model, but that’s not much better. Current custom-made models still fuck up significantly more than humans, and in less predictable ways.

Even if their custom model is slightly incorrect 1% of the time, that’s still a major problem in critical systems like those.

Legacy COBOL code is largely used in critical systems like those of banks and airlines. What could go wrong with having that code rewritten by stochastic parrots who get programming answers wrong half of the time?