P2R2P?
Yes it's a relay network. Not p2p
It's p2p regarding the "betting contract" not regarding the communication network layer. That's like saying that bisq is not p2p because it communicates over tor.
The people who are building nostr said this and I believe them 🤷 "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."
What you read is correct, you're just applying it out of scope. Bitcoin is p2p electronic cash but the participants also don't need to communicate p2p.