[UCANSEE2]

Tax supported groups are in a different situation than a private owner

I would agree. However, they still violated a contract, did they not? Why did they agree to show it in the first place?

[count-your-change]

What I meant by the tax supported group being in a different situation is that they have to be neutral whereas a private owner might be able to just refuse.
Schools have faced the same choice, be even about renting public facilities or rent to no one.

And right you are, the contract was valid from all reports and whatever someone else says about the event has nothing to do with it.

I suppose the Center agreed before they rec'd their orders from above (The Great Mythsonian).