Hi - yes, the plugin does seem to be superseded, so is unlikely to be updated - but the problem is with migrating the plugin generated user data to corresponding core user data fields, so that the plugin can be safely removed.
Simply uninstalling the plugin also seems to delete the associated data (or at least it is no longer visible when looking at user profiles)
Assuming I am not the only plugin user, if would be great if the plugin was given a final update, to include a ‘migrate’ function!