There is simple correctness but there are also second order effects to consider. How does this particular implementation allow you to grow, and in which directions? What does it prevent? If you don't already have an opinion about this, then the LLM is going to do something and you're going to have to live with it, because it has no idea that it is "making a decision". And now, neither do you!

This is why LLMs do their best work at "leaf nodes", building on existing infrastructure but not designing new patterns on their own.

LLMs can't introspect, reason, or build internal models of the world. You can get very far without that, but there are some subtle ways it will bite you, and it's a fundamental limitation. Hallucinations are one: they are the feature, not a bug.