If Carney or Scott actually made some kind of effort then it would have been ruled no try. But instead they stood there and watched Hodges score. It was a poor defensive read and awarding the try was a great decision.
It was not a poor defensive read at all. Scott and Carney both made decisions based on the fact that Hodges was not allowed to run behind Hannant. If there was an extra QLDer there who received the ball from Hodges and ran through the gap, it would have been a poor read and a perfectly legitimate try.
I'd love to know if anyone can find any examples of a similar try being given, even in the last 18 months because if that's a legitimate play I'd expect 2-3 tries a week minimum scored like that. I can't recall it ever being anything other than a penalty though if the player doesn't give himself up.