I see a whole lotta contact with the shoulders and a whole lotta stretching by his ostrich neck. terrible call.
Penalty: For unnecessary roughness: Loss of 15 yards. The player may be disqualified if the action is judged by theofficial(s) to be flagrant.
Note: If in doubt about a roughness call or potentially dangerous tactics, the covering official(s) should always call unnecessary roughness.
Prohibited contact against a player who is in a defenseless posture is:
Forcibly hitting the defenseless player's head or neck area with the helmet, facemask, forearm, or shoulder, regardless of whether the defensive player also uses his arms to tackle the defenseless player by encircling or grasping him;
So you only see his shoulder hitting Brees head? Well if that wasn't part of the rule, you could have a point.
Also, on next two possession! Kaepernick was 3 and out, actually lost yardage, and Saints drove down for two scores on next two poss,, so why is it a definite they lose if penalty wasn't called?