From the wiki page you reference for example:
> The reasoning is that a party should not be held to a contract that they were not even aware existed.
And later on, something directly relevant to this discussion perhaps:
> Mutual assent is vitiated by actions such as fraud, undue influence, duress, mutual mistake, or misrepresentation.
I think that this discussion is more closely related to the legal concept of a Mistake [0], which absolutely can be something that a court might address. Though even that doesn't seem like quite a perfect fit here.
[0] https://en.m.wikipedia.org/wiki/Mistake_(contract_law)#Mutua...