Or users will find a new platform to play with the toys they love. Platforms function are to enable content. Apple is limiting this (xcloud, forced in-app purchases). I don't like Fortnite and not big fan of Epic, but at the end if they succeed, it will benefit consumers.
I for one I am glad they are not taking the easy out and just come back and play by Apple Terms. I do not have any motivation to cheer for any company (we are individuals are meaningless to them, they're just after our wallets, and I only care about their products). I just care of what will benefit me, as a consumer, and Epic course of action seems to be the one that would benefit us consumers the most.
But hey, if you instead of reasonable consumers want to blindly cheer for Apple, sure go ahead! Unfortunate, as that's part of why Apple gets away with some things no one else would, but not much I can do about it.
Also, I get a kick out of the many "lawyers" out here, who seem to know all their in and outs around contracts, applicability and all. Amazing!