Have you considered adding the 'relays' option to your NIP-05 validation so the clients know to use (or at least suggest) that relay for your users without them having to add it themselves?
You don't list relays on your NIP-05 currently…
https://nostrplebs.com/.well-known/nostr.json?name=derekross
I feel like NIP-05 has a lot of power with the relay option - but hardly anyone is really taking advantage of it.