> People can communicate each step, and review each step as that communication is happening.

Can, but don't by default. Just as LLMs can be asked for chain of thought, but the default for most users is just chat.

This behaviour of humans is why we software developers have daily standup meetings, version control, and code review.

> LLMs must be prompted for everything and don’t act on their own

And this is why we humans have task boards like JIRA, and quarterly goals set by management.