I don't believe AI has yet to pass the Turing test.
AI/cognitive science is a pet area of mine:
A Few Notes on Artificial Intelligence
For the record, I don't think computers could practically grade cards on their own. As an aid to humans I could imagine. And, if they could, it would still be humanly subjective, because humans would still decide (and endlessly debate amongst themselves) what qualities and quantities and in what ratio are essential for a grade.