Actually, that's a good question! One issue is that it's really expensive to provide high-end stuff for general eating. Also, in spite of what people are learning to cook, they still bring their own (possibly untrained) palates with them. So I would not expect great stuff in a dorm setting.
I can tell you about New York Restaurant School, where I went. Since it's entirely a commuter school, there were no dorm meals. You ate what you made in class, or what other classes made. All in all, it was pretty good, considering that everyone was learning and often had never encountered some of these foods/ingredients before. The best was when classes made croissants.

The only time I remember a total disaster was at our Baking and Pastry Final Practical. One guy (who was actually legally blind, but that's another story...) misread Tablespoon for teaspoon, and we almost choked to death on his focaccia.
French Culinary Institute runs a public restaurant, L'Ecole. But I've never eaten there. However, I've been less than impressed with the food they've catered for meetings I've been to there. The same with Kump's, I mean I.C.E. (sorry, KyleW). And last week I was at The Restaurant School in Philadelphia, which was pretty good but meager (and the skin on the duck legs didn't look all that appetizing, although it tasted fine). Although the group I was with, including some top cookbook writers, agreed that the cake was waaaaaaaaaaaaaaay too fussy and sweet. But again, they were probably just following the recipes.