I think it was really stupid, out of all the good types, and the ones fans have begged for (*cough* light *cough*) instead they chose to go with the type NO PEOPLE EVEN THOUGHT ABOUT before it arrived, also fairy>dragon? shouldn't the dragon eat the fairy? it's like water>ice, shouldn't the ice freeze the water? Don't get me wrong, i'm no genwunner and i still like Xerneas but, fairy, just...FAIRY.
I kind of thought this at first, but Light probably would have been too scarce like Dragons and Ghosts were in Gen I. Fairy at least has a whole back catalog of Normal types to make more interesting. And I genuinely think they fit.
Children, send me back home For this is the reason you were born