They run more than they throw because they are pretty often holding a comfy lead and don't have to throw to get scores to get back in the game.
He completes 65 percent of his passes, is on pace for 30+ TDs and about 8 INTs and averages 8.8 yards per attempt.......and you want the guy having that kind of year to throw more because it'll hurt SEA?
LOL ok.......