brain of a horse, speed of a man.

This is wrong on so many levels. We wouldn't bother even using LLMs if they are were merely the "speed of a man". And anybody who's bothered to actually use the technology can tell you that's it doesn't have the "brain of a horse".

Human review is still important, but the depth of knowledge they have is pretty damn advanced. The moment you completely remove the human element is where everything falls apart.