That's the thing about open protocols (and quantum mechanics). Anything that's not forbidden, is required. 😜

In seriousness though, I think relay to relay comms was always going to happen and is probably a good thing. I think it probably makes the network as a whole more resilient. I guess to our earlier points, it's really about what the aim of your messages is – are they public broadcast or private small group. There is still a lot of work to be done on the private side of Nostr.