That's exactly the same for humans in the real world.
You're focusing too close, abstract up a level. Your point relates to the "micro" system functioning, not the wider "macro" result (think emergent capabilities).
I'm afraid I'd need to see evidence before accepting that humans navigate 'pre-carved channels' in the same way LLMs do. Human learning involves direct interaction with physical reality, not just pattern matching on symbolic representations. Show me the equivalence or concede the point.
You're proving my point. You know the word 'gravity' appears in texts about falling apples. An LLM knows that too. But neither you nor the LLM discovered gravity by observing reality and creating new models. You both inherited a pre-existing linguistic map. That's my entire argument about why LLMs can't do Nobel Prize-level work.