He seems to be trying to emphasize the relative triviality of the technical problem from building the MVP absent leveraging "someone else's computers" perspective.
You're talking about the delta and impact created by the fact we've become so dependent on someone else's computer to point us in the right direction to create the visibility and discoverability we want.
The point I think both of you are dancing around, but not hauling out into the light, is these platforms enable the abstraction of the techie work, and allow creators to just publish. Creators are so dependent on not having to do the techie work, that unfortunately, they are left at the mercy of the techie+business platform provider, and as a result, are vulnerable to censorship based on that platform's visibility to the world at large.
Large integrated platforms are cool and all, but at some point, we need to sit down and look at the federatability of these types of communication platforms.
We can't rely on implicit Gatekeepers not being manipulated into acting as amplifiers/dampers as circumstances warrant from their side.
At least that's the vibe I'm getting.