It's not over, and it was not easy, that was very clearly something that Odium is pushing Taravangian to do, and it will grow harder to resist every second. There where quite clearly two trains of thought, that isn't good for King T.
If the terms are broken the contract is null and the violating party is within the power of the other
But it isn't just Dalinar they go over how it is thier sides not just them.