Going a level up, it's as if the internet its self could be reimagined. It's a network of private networks controlling and managing access and routing. Imagine if it wasn't. 

Community built networks running a shared broadband and providing access to all. Everyone hooking up to it on thie own.

Likely, the private sectors could move faster and is why the internet looks like it does today.

Nostr is the same.

Doing this as a hobbyist is difficult. UX of just using it is a challenge, let alone running relays.