Board Thread:General Discussion/@comment-4224349-20141204232756/@comment-24990623-20141215234953

Don't worry, I understand that.

However, it's something we as the viewers know will pop up again. It demystifies Rose a little as a character and is, once again, plot important.

Same with, say, Sugilite. We got shown this awesome uncontrollable beast early on. A character like this will be used in another episode because of a big baddie or something.

Alexandrite and Opal too.

You should read To Kill a Mockingbird. It had innovations in things such as world building, where the Ewell family was introduced and became very plot important later.