But wouldnt create that a loophole: 
I create a game while getting funded by a “friend”. After the game is finished, I give the game for free to my friend as a birthday present. (Im a nice guy, you know).
Then my friend starts selling the game. Since he has nothing to do with Epic, no royalties apply.
And because he is such a nice guy he gives me his brand new Ferrari. He sais he is too busy playing my game, so he doesnt have time to drive it anymore :rolleyes:
In short: One makes the game, the other get it for free and his profits then are “safe” from Epic…
Or did I miss something here?