I'm pretty sure it was also sending a message to other companies with big apps - stick to the agreement or we will retaliate. On the other side, keep in mind t

I'm pretty sure it was also sending a message to other companies with big apps - stick to the agreement or we will retaliate. On the other side, keep in mind that Epic is also an enormous company with an army of lawyers. They probably guessed this was a possibility, and they may yet succeed in trapping Apple in a retaliation/breach-of-contract quagmire.