Very interesting article. As a scholar, linguist, and educator, and seminary hopeful, this was a very interesting read.
I saw the National Geographic show. I found the story interesting but perhaps because of my pretty solid Catholic theological upbringing, once I heard the word "gnostic", I pretty much gave up on believing anything the text reported could actually affect two millenia of Church teaching.
Interesting though -- Judas is presented as the most trusted apostle, but then it's disputed that he's actually a demon banished to the 13th aeon. Some gnostic beliefs would make a pretty cool sci-fi flick.