I don't see where you get the conclusion that this is about the source. This seems to be mostly about fan-games. Mark Rein mentioning their lawyers telling him that they 'have to defend it' seems like a way to just get rid of further inquiries. I wouldn't think Lawyers were the main policy makers within Epic.

ShadowRabbit: You cannot read into the future, so I don't think you can make statements about it.