Twitter charges a million dollars a year to access the firehose of raw streaming data. Nostr charges nothing.
In addition to that, nostr does not use any addiction-inducing algorithms that suck up all your mental energy nostr:note1euy5yx7fus69qrvjs89pzvu6w2c3t3fqhex98pseuq5vpf8fytqse4l27e
That has to change as the firehouse grows in size as relays will take considerable resources to run but you have a good point that the nostr architecture allows you to access as much of the total raw feed as you want while incentivizing relay operators to monetize their retrieval services at commodity cost. Gatekeeping is not automatically encouraged like it is in twitter land.