No one at all claimed that, certainly not the person you responded to. They're talking about how to use these tools in a way that gives you insight into what they produce. So, as an engineer, you know the shape of the output, before it's made.

That's it. Maybe you should go re-read?

Why is that so hard to believe? I don't always do this, but I do course-correct Claude on almost every big change. YOLOing it would superficially look fine, until the latent issues catch up with you.

Maybe they are?