You really shouldn't say LLMs "never graduate" to experienced staff - rather that they haven't yet. But there are recent and continuing improvements in the ability of the LLMs, and in time, perhaps a small amount of time, this situation may flip.
I'm talking about the current SOTA. In the future, all bets are off. For today, they are very capable when paired with a capable person, and that is how one uses them successfully today. Tomorrow will be different, of course.
