His position seems to be similar to MIT engineer David Mindell's, who recently wrote Our Robots, Ourselves[1]. It seems to me that the more hours one spends solving real problems with AI, the less likely they are to believe an apocalypse is imminent. Conversely, the more dependent a prognosticator is on book or film sales, the more likely they are to predict or depict a near-term AI apocalypse.

[1] Google Talk: https://www.youtube.com/watch?v=4nDdqGUMdAY