It's even more fascinatingly dumb to have this discussion like 2 or so years after every major platform decided to kill any notion of 3rd party clients they used to support.

Yes, in an ideal world, that'd be great for both humans and LLMs, but we are about as far from that ideal world as we could be. You can't even do some of the "advanced actions" as a human with human-level reflexes without encountering a captcha, but sure, all of a sudden, everyone will just decide to make their bread and butter that is data easier to explore via an LLM.