No, something that can't be proven or disproven isn't a theory. It's woo. Eckman sounds like Uri Geller talking about James Randi.

And even according to Eckman's own criteria his defense is idiotic. Of course the testers have something riding on the outcome. If there's actually a terrorist threat and behavioral detection is real, they want to make sure it's done right and what's riding on the outcome is the safety of their country. Another benefit to them personally is doing a good job and winning a game. Like poker.

Eckman's a dowser saying that any testing process messes up the conditions needed for dowsing.