There are courses offered that students can take for credit, but it's entirely optional and dependent on your home college/university accepting the credit.
However, I really think if you're looking for an argument to dissuade you from the idea that this is essentially a way for Disney to acquire cheap menial labor, you're not going to find it — because that's pretty much what it is. I did it, and I'm not under any illusions to the contrary. I just know it was a lot more fun than my summer job as a movie usher/concessionaire a few years earlier was.
At best, it's a chance to take a few classes and (if you're interested) get yourself in a position to stay on with the company at the ground level, or qualify yourself to apply for a more legitimate Disney internship later on.