The quality of generated code does not matter. The problem is when it breaks 2 AM and you're burning thousands of dollars every minutes. You don't own the code that you don't understand, but unfortunately that does not mean you don't own the responsibility as well. Good luck on writing the postmortem, your boss will have lots of question for you.

AI can help you understand code faster than without AI. It allows me to investigate problems that I have little context in and be able to write fixes effectively.