Sure you can. TOS docs are full of non legally enforceable wishful thinking bullshit, especially when they're written by an American company providing services to me in Europe. Most of the time they just expect (correctly) that they'll never get challenged in court over it.
Even if it isn't enforceable from a usage perspective, it is from a provider perspective, meaning they can also simply deny their service to anyone they discover breaking said terms. And there's nothing anyone can do about it.
> Some "legal agreements", TOS, etc. are even unenforceable and blatant abuses of the law.
Good luck trying to classify this one as such. There's no valid argument given the fact that users are attempting to gain access to an offer in a way that isn't applicable to them. It's tantamount to deception and stealing, going somewhere you were not invited as though you were and taking something that wasn't given to you.
Sure you can, that's what courts are for