With an AI, you don't know what it is that the AI doesn't know. A trivial example: Some "nondisclosure" agreements (NDAs) also include invention-assignment agreements [0] and/or non-competition covenants. I'll recognize such provisions if I see one in a putative NDA, but I don't know whether the AI will recognize it. Sure, the AI could provide a list of everything that it does know, but when I review the list, I won't necessarily notice that a missing item is missing.

[0] Stanford University got trapped by an invention-assignment agreement contained in an "NDA" that one of its researchers signed when he visited someone at Roche — see https://en.wikipedia.org/wiki/Stanford_University_v._Roche_M....