Yes I read that article already and to me it seems like a poor attempt at explaining there is nothing weird going on. They left a LOT of things unexplained.
I read this article today and it contains a lot of things about the airport that hasn't been explained:
http://www.anomalies-unlimited.com/Denver_Airport.html
Because of all these writings I was thinking if there would be any books about this. I already have Dan Brown's Lost Symbol but I haven't started it yet.