It is kind of a gamebreaker. There's just no point to this being in there, really. It would be like if I decided to describe magic in the Harry Potter world as a small rodent living in everyone's liver that produces a special sauce that allows wizards to use magic. Except only wizards know about it and if anyone else knows about it, they assume it does something else. Oh, and the fact that I brought this up has nothing to do with the plot. Carry on, Harry and the Hamster.
So, now magic is suddenly less magical because it has the hamster explanation and no one knows why we have the hamster explanation because it's never mentioned again and just seems to exist to make magic less magical.
