That’s not how that works. The contract is in and of itself a violation of the first amendment. Therefore it has no legal binding. They wouldn’t be able to remove the offending media from any platform or sue for damages if someone breached the contract.
If there are internal ramifications due to a breach of contract that’s something that could be handled internally, such as the content creator not being offered any review materials in the future. But a contract wouldn’t be necessary for that either way.
Moreover, specifically for satire, there are whole acts in the law advocating for it. There is absolutely nothing, no clause or agreement that would ever prohibit someone from publicly satiring any given entity. Regardless of any contract.