Not nearly as important as the inside of the rocker panels.
Another spot that will have rust on your 11-14 is between the front bumper and grill. There is a plastic piece that runs between this for aero ( i think they should have just made the gaps tighter) and that piece rubs on the top of bumper in four spots. These four spots are completely though the paint on mine and rusted. I just apply fluid film every year. Not as big of a deal due to the bumper being disconnected from the body, however over time it might creep up to where you could see it from the front of truck.
Another spot that will have rust on your 11-14 is between the front bumper and grill. There is a plastic piece that runs between this for aero ( i think they should have just made the gaps tighter) and that piece rubs on the top of bumper in four spots. These four spots are completely though the paint on mine and rusted. I just apply fluid film every year. Not as big of a deal due to the bumper being disconnected from the body, however over time it might creep up to where you could see it from the front of truck.