User blog comment:Maki Kuronami/Lesson 24: Why the Naming Rule of Remnant Exists/@comment-11188061-20140926091025/@comment-10380701-20140927002856

Nothing wrong with an EX-tier badass being on the good guy's side. Think of them as a crutch. Obviously they're 50 levels ahead of the main characters. But once the main characters catch up, that's when they no longer need the crutch.

So once RWBY graduates, DumbleOzpin is no longer necessary.