The checklist half automates cleanly, you can lint that every route calls authorize. It won't catch authorize being handed the wrong policy, which is the one that ships. And when I put a second model on review duty, the common failure is it agreeing with the first model's misreading of the spec, almost word for word. So I'd expect the forgetting class of bugs to mostly go away and the misread-the-spec class to sit exactly where it is.