Exactly. When you assume blob-util to be a utility library that has been in use for quite a while by many people in many different contexts, hasn't seen much changes and just "works", IMHO the risk of weird bugs is a lot larger with LLM-generated code. Code generated by LLM's often have the problem that the code seems logical, but then contain weird bugs that aren't immediately obvious.

Agreed. The code available in e.g. Apache commons is not perfect, but it's seasoned and has the edge cases documented