@J12t Hmm, I think there was a typo there, as I meant "organizational control", but still.

This would involve greater control in terms of participation, who you can connect with, and who can access and engage with your "space" and content, via blocking, defederating, and your relation to the underlying server.

There may still be barriers (ie depending on who your host is, or where it is located), but there are more options than exist with the walled gardens.