I can't figure out the copyright aspect of this; yes, it's probably fine for everyone to download them while they're available, but will you be theoretically al

I can't figure out the copyright aspect of this; yes, it's probably fine for everyone to download them while they're available, but will you be theoretically allowed to keep them after they end the promotion? I'd say yes, but maybe that's not what they meant... or maybe it's such a small revenue loss that they don't care