I like all the white people standing up against this as "injustice" and "anti freedom of speech". Wearing blackface is inexcusable. Is it illegal? No. But the university has a right to decide what type of "free speech" it allows its representatives to take part in and wearing blackface steps far over that line, regardless of your excuses. Even if it's oversight on her part the university has to take a stand for what type of behavior it will tolerate. 

There's even a comment comparing the use of blackface to when black men dress as white women in comedies today, which shows people are completely missing why it's offensive. There isn't a deep-rooted use of "whiteface" in our culture to stereotype and oppress white people. That's what gets to the root of this problem. People of privileged and power don't understand what it's like to live a culture that historically (and currently) oppresses you simply for the color of your skin. Grow up and look beyond yourselves. It's shameful.