world where everything is perfect and made to be consumed by LLMs
I believe the parent poster was clearly and specifically talking about software documentation that was strong and LLM consumption-friendly, not "everything"
You SHOULD be making things in a human/LLM-readable format nowadays anyway if you're in tech, it'll do you well with AIs resorting to citing what you write, and content aggregators - like search engines - giving it more preferential scores.