Remember that Tencent owns about half of Epic. Once this dispute is resolved, if Apple were to try and “punish” Epic, they could encounter some pressure from the Chinese Government. There seems to be a lot of dependent relationships involved here.
Apple already tried to punish Epic. They removed all of Epic's apps from the App Store yesterday. And they tried to terminate all of Epic's developer accounts, including accounts for Unreal Engine, which was only stopped by a court's temporary restraining order.