With bluray rips, I don’t really see any way to avoid that unfortunately, unless someone else has already added the hashes for your release. Most people use it to scan their encoded releases, which will (in most cases) have already been added to AniDB by the release group. I’m a bit surprised though, that none of your rips are recognized. Have you checked the AniDB pages for your series to see if anyone uploaded hashes for bluray rips?
If I may ask: how practical is monitoring / administering rootless quadlets? I’m running rootless podman containers via systemd for home use, but splitting the single rootless user into multiple has proven to be quite the pain.