The author is working on an opensource C++ codebase and not on biology tasks. The work is around tooling.

It's like saying well a scalpel is used for medical reasons, sure. But manufacturing scalpels is metalworking, not medicine.

> The honest way to say this is that Fable is not useful for bio-related work.

It is way worse than that. Try "How does digestion work?" and you will see "Fable's safeguards flagged this message". It's a stupid rate of false positives.