They threatened to effectively revoke other developers licenses. Its plainly clear that if Apple blocks Epic from being able to continue to work on UE for iOS a

They threatened to effectively revoke other developers licenses. Its plainly clear that if Apple blocks Epic from being able to continue to work on UE for iOS and macOS, they would affect other developers that are currently using Unreal Engine and have not breached Apple's terms. While Apple was not threatening to directly revoke those developers license, the net effect would have been equivalent. This is why the court ruled that Apple cannot currently do this. It's not necessarily because Apple is actually doing something wrong, but because during this litigation, such actions which may not be directly pertinent to the litigation, may have negative effects on unrelated parties. The court isn't saying Apple is wrong for threatening to block Epic fully, including UE. The court is saying that doing say _may_ not be legal and thus Apple should hold off on it until the court has had time to deliberate the issue. It is only prudent of the court to work to reduce the variables in this situation and to prevent potential harm to innocent parties.