It’s definitely not even close to bring solved either. I haven’t seen a single code generator that works (100% of the time) for anything more than a very simple one or two liner.
So far, this involved changing the input or patching the code generator. Now we can simply nudge the code generator toward the fix. And we circle back to the point TA is making: just like you can't expect a junior programmer to get it right the first time, also the code generator needs feedback. And since the code generator is not restrained by a lack of technical knowledge like a junior programmer might be, it is even more important to supervise it.