Micromanaging LLMs is like having Dory from Finding Nemo as your colleague. You find ways to communicate, but there is no learning going on.
Of course if you don't provide that feedback loop, no learning happens. I guess the same could be said of a junior, though.
When people compare LLMs to juniors it's "can I have it do something pretty brain numbing, and when it makes mistakes can I invest time into preventing that from happening again, either systemically or via training?"
IME this is true for LLMs, at least in how my team has been utilizing them. This doesn't make juniors worthless, as they can be useful for things that LLMs aren't good at.
And it's really someone's fault for hiring a bad junior. Someone did interview them, right? Maybe the person that hired them is the problem. And maybe the person that decided to go all-in on AI is also the same problem.