It's not really second hand. The LLM didn't merge and deploy the code. The developer did. The LLM won't fix the bad push, the developer will have to. This is no different than a more junior dev copying and pasting a snippet from Stack Overflow that they partially understand without accounting for the edge cases or sometimes even their specific use case. Experience comes from failure and LLMs will help you fail and potentially help you recover from it just like any other resource developers have been using for years.