A program that is generated at runtime is fine (we have interpreted languages and often compile on demand) - the issue is with the non-deterministic nature of the output.

I think the core issue is that non-deterministic output is great for a chatbot experience where you want unpredictable randomness so it feels less like talking to the mirror - but when it comes to coding I think we're pretty fundamentally misaligned in sticking to that non-deterministic approach so firmly.