I don't think that the Utes should be catatonic with fear or anything like that, but those players might want to be a bit more careful with their wording.
Saying "we're not worried about the passing game" could be perceived as disrespect by JPW and especially Julio Jones and the other receivers. It's true that the passing game hasn't set the world on fire, but it really hasn't been needed very much and IMHO the passing game has underacheived according to its potential. If I were an opposing defense, I wouldn't want to give them any incentive to reach down and pull some of that unused potential out at my expense.
If they are seriously discounting the passing game, McElwain might key on that in creating his gameplan. So, loose lips could sink ships.
I believe that if a Bama player EVER came out in an interview and said "we're not worried" about any aspect of an opponent, CNS might revoke his access to the press for a while. It's not a smart move in any fashion.
The best answer to any question about an opponent is to compliment their personnel, their coaching, their scheme, their schedule and their fans. It's the proverbial "kill 'em with kindness" maneuver and it usually works better than the "make 'em mad and give 'em some idea of your strategy" method.