One thing to note after doing my install, removing the facia probably would have been a whole lot easier if I had taken off my skid plate. So if you have a front skid plate I suggest taking it off for easier access to the facia fasteners.
Looks like the bumper has 2 grill locations on the bottom just above the skid plate, this may be to allow airflow through in place of the main opening in the front that has the lightbar.
Intercooler gets its airflow through the grill. There is nothing behind the bumper that forces any kind of airflow up to the IC. It would however look to possibly block airflow to the lower part of the radiator. Simply not using the middle light bar looks like that would be resolved if it were...