Why don't the character tags for various copyrights implicate their respective copyrights? Images with Kancolle's Hiei ought to be auto-tagged with Kancolle, the same way images of KC Verniy are auto-tagged with KC Hibiki (which, in turn, should be auto-tagged with KC).

I'm assuming that the uploader didn't add the Kantai Collection tag to the images in this pool manually because he thought it would be added automatically. I would have thought so, too.