Though I have been at the University of Virginia for merely two full weeks, my professors have already stressed the importance of the individual in studying history and non-western perspectives. The way in which the cartoon portrayed the William and Mary Tribe contrasted sharply with the messages delivered in the classroom and the listed goals of the University as a whole. Professors may urge us to pluralize and abandon the wrong stereotypes engraved in our minds, but this mindset means nothing if it does not expand beyond academia. Our prejudices are fed by stereotypical images, both subtle and blatant.
William & Mary apologists will say they can't control what other schools do. Sure they can control it: by changing their name and logo. It's like using the swastika, an ancient religious symbol, and then blaming others when they interpret it as a Nazi sign. That kind of thinking doesn't wash.
For more on the subject, see Fighting Sioux = Fraidy Cats and Team Names and Mascots.