Does this matter? Corporations are on notice that this pendulum may swing the other way in four years (and remains permanently stuck the other way in certain states). They might just decide to steer clear of this minefield.
Ignoring all the other details, if someone waves the magic wand and makes it legal you can use it, when someone waves the magic wand and it's not legal, then the agreement is just void at that point. There's no retroactive consequences.
Even if they don't intend to go through the trouble to enforce them, they have a chilling effect.
We need stronger enforcement all around