It is worse than that. We're all maintaining in our heads the mental sand castle that is the system the code base represents. The abuse of the autocoder erodes that sand castle because the intentions of the changes, which are crucial for mentally updating the sand castle, are not communicated (because they are unknowable). This is same thing with poor commit messages, or poor documentation around requirements/business processes. With enough erosion, plus expected turn over in staff, the sand castle is actually gone.