Generally speaking, with humans there's more guardrails & responsibility around letting someone run while in an organization.

Even if you have a very smart new hire, it would be irresponsible/reckless as a manager to just give them all the production keys after a once-over and say "here's some tasks I want done, I'll check back at the end of the day when I come back".

If something bad happened, no doubt upper management would blame the human(s) and lecture about risk.

AI is a wonderful tool, but that's why giving an AI coding tool the keys and terminal powers and telling it go do stuff while I grab lunch is kind of scary. Seems like living a few steps away from the edge of a fuck-up. So yeah... there needs to be enforceable guardrails and fail-safes outside of the context / agent.