Design aside, the most stupid thing they could do out of this is placing them in a high school.
They're supposed to adults, god damn.
It's one of the things that makes FiM popular in the first place: the fact that you're dealing with grown ups and not annoying kids or teenagers.

INDEED. It's not too late Hasbro! At least don't make them have the same color of skin as they do as ponies.