And this is forbidden in the contract, if indeed it is so?
You've read their contract, have you?
Not a strawman at all, as though such an accusation is going to make my example invalid, but tossing that in is fun and meaningful, I suppose.
You're arguing an illogical position, that a non-signatory to a contract can be bound by that contract or that a person signing a contract has to control or is responsible for third party actions.
Maybe you could could explain how that logic works before I'm the reason for an upcoming event at the Center gets canceled because of my unapproved announcement.
The person signing the contract is responsible for upholding the clauses of that contract.
I have posted a link to the contract, and the AFA did not uphold their part of that contract.