That's depressing, lol. Well, my guess is it won't be 100% enforceable because there will always be computers with root access, and it won't matter while Windows and Mac capitulate and 95% of the market complies because they're used to signing up for shit. It might be illegal at the user level but not enforceable, much like a lot of other things.
Silver lining, another generation of horny teens will learn to love Linux the same way I was pushed into rooted devices at a young age.