I work with a lot of AI code, and it’s not any worse than what big teams were already producing.
A small team of 2-3 really good humans is in a whole different league, but that has always been a very rare case.
I am saying this because I haven’t seen latest gen AI unable to implement something no matter how convoluted the code base. On the other hand, people easily get overwhelmed. These days I have more faith in Claude implementing something for me than for a person, including me , doing it thoroughly enough on unfamiliar code bases (and for any big enough code base, large swathes of it will be unfamiliar to any individual developer).
It's true that AI has an incredible ability to take in a massive amount of information and do useful work with it. But it has no direct ability to exercise judgment, and with each iteration of reasoning and applied changes, its ability to hold the original intent degrades very differently from a human intelligence.
It is hard to me to fathom why anyone would find those limits acceptable, especially with years of experience writing code. It seems something like an experienced painter giving up on their art to doodle with crayons, and maybe that could be cathartic. Maybe you get experience with other aspects of your craft.