@HarvestMoon1: I agree that CMC’s policy can be read in a reasonable way. I’m just not convinced that it’s the only way to read it. It seems to me like “materially disruptive” could be read to include “disruptive to such an extent that we would need to consider cancelling the event.” Nothing in the policy that I’ve seen prevents any official from reaching that conclusion.
As a contractual matter it’s a bit murky. While I have seen some courts apply principles of contract interpretation, I’ve seen others give universities a fair bit of discretion. This policy vests an awful lot of discretion in CMC either way.