Yes, they had all of one bad game with Aaron in the lineup.
They came back the following week and held the Cardinals' offense (9th in yards, 6th in points), to 16 points.
If you didn't notice the enormous difference in the defense's ability to communicate and handle assignments once Aaron went out, then I'll be very surprised--you normally are more astute than that.
And as I said, it is unacceptable that the defense is that reliant upon one guy (or even one position) to be effective.