The "deeper philosophies" simply require the use of currently accepted and valid botanical names. This does entail the eventual removal of invalid names. There are some outdated names in the database because taxonomic changes occur so frequently that it's difficult to keep up with them, but we do our best to update listings as the changes occur. In most cases, the common name of a plant preserves differences that may no longer be recognized by taxonomists. You'll find all of the polyantha primroses in our database, for example, if you search for Primula polyanthus.
