Human speech is inherently inefficient and ambiguous. Humans rely on non-verbal clues and context to distill the exact meaning of phrases, and even then the potential for miscommunication is non-negligible. It is a huge leap to assume that artificial intelligence can succeed in flawlessly divining intent from regular human speech to the point where it can generate debt-free code. And if your solution to that is to say "no, you need to issue specific instructions to guide the machine to the correct solution" then you have not removed the skill requirement, you have merely redefined the skillset.