If I would manage devOps, I would demand that AI code has to be signed off by a human on commit taking responsibility with the intention that they review changes made by AI prior pushing

And you would get burned. Today’s AI does one thing really really well - create output that looks correct to humans.

You are correct that mandatory review is our best hope.

Unfortunately, the studies are showing we’re fucked anyway.

Because whether the AI output is right or wrong, it is highly likely to at least look correct, because creating correct looking output is where (what we call “AI”, today) AI shines.