Networks are made for, by, and of people.
Ignoring that to focus on sandboxing is fine if you don't care about helping people.
No one cares that "nostr doesnt care" because protocols aren't sacred. They live and die by their ability to help people.
Also, your claims aren't true are they? You cannot "verifiably publish" you can sign and pray it reaches your intended readers. Nor can you "subscribe to whatever content you want" because there is no real discovery solution and you are limited to content in the nostr web.
Oh, and maybe it isn't ONE person/org funding this, but it isn't many more, right?