Cedarville should have let Claiborne speak

Cedarville University had invited Shane Claiborne (whose book we have been interacting with in this blog) to speak, but has now un-invited him, thanks to bloggers who think this is a sanctioning of liberal theology. The story's here. My question is: isn't Cedarville a university? Universities are supposed to feature speakers (and ideas!) from everywhere on the spectrum. Claiborne makes a good point in the article when he says that his critics should be talking to him directly and cites Matthew 18.