I'd rather have a guy like Fitz that doesn't care about stats and will go down swinging than a guy that would rather protect his stats anytime he gets down 14 points.
Also, some of the guys that have thrown 6 picks in a game. Manning, Favre, Namath and Blanda.
Namath and Blanda have done it 3 times each.
Also of note, Hebert did it twice.
All of the greats have had 4 interception games, almost all of them have had 5 interception games including Brees. It's just bad luck. You have one or two balls tipped and get picked, one or two where receivers run the wrong route, 1-2 bad passes and a couple jump ball situations that the defensive backs come down with the ball and getting to 5 can happen really easy.