It doesn't appear to say clickwraps are non-binding, only that it has to be "conspicuous" and basically that a user knew they were agreeing to something. Unfortunately that too is open to interpretation. As with most things of this nature, if someone wants to sue, they can sue, and it's a resource fight in the courts.

[0] https://en.wikipedia.org/wiki/Specht_v._Netscape_Communicati....