People continue to be concerned about the privacy implications of an invasive system like CCA.
That's why there continue to be a number of programs out there to bypass the CCA installation.
Here is another one I have come across, which claims to be working with all CCA versions. Of course, as always, use at your own risk and don't blame me or the author of that program if your computer locks up or if you get into trouble with your network administrators.
Competent network administrators would provide an opt-out or would only mandate use of the CCA client after a virus/bot incident. If your school has such network administrators, consider yourself lucky. The UCI Resnet administrators, unfortunately, dismissed such suggestions.