I'm wondering if someone could reach out to Apple, beyond their customer service to reconcile this concern with the DLC? Someone has to have an answer on this. I personally think it does use the DLC. But then again, perhaps it doesn't have the DLC.
For example, the rumor was the iPhone 7 was not using sapphire on the lens cover for the camera. Someone reached out to Phil Schiller and he clarified indeed the lens cover was in fact genuine sapphire, along with the home button.
We all need to tweet Phil and Tim until they give us an answer! I've started the process! lol