Fair - but encryption aside: nostr is specifically designed to avoid any P2P aspects.
For better or for worse the relay model is what defines nostr ๐คทโโ๏ธ - we'll see if that pans out.
"It doesn't rely on any trusted central server, hence it is resilient; it is based on cryptographic keys and signatures, so it is tamperproof; **it does not rely on P2P techniques, and therefore it works.**" - 
GitHub
GitHub - nostr-protocol/nostr: a truly censorship-resistant alternative to Twitter that has a chance of working
a truly censorship-resistant alternative to Twitter that has a chance of working - nostr-protocol/nostr