No, he finally said something that cost Murdoch money instead of making him money.

Exactly. They were totally fine with Carlson's content until it cost them a significant amount of money.

Part of the lawsuit is that he and the other Fox hosts were texting each other and mocking the lies they were saying on air as obvious nonsense.

Did he say something different after the $787 million judgement? Because the whole reason that judgement came down is because Murdoch was fine with what Carlson was saying.