It feels nice and clean, but also like it is leaking the list of sites I use.
I think this is outside of the threat model of most password managers -- your desktop search history (whether in your shell, Spotlight, or whatever) is leaking equivalent and probably more detailed information.
That's part of the threat model for most other password managers, which use a single encrypted file for the database. Pass is the only popular one I know that stores part of the information in plaintext.