Interesting analysis.
On the positive side, the Falcons defense reminds me of the old Colts defense, Freeney and all. Fast and athletic but not very physical, imho. There are a lot of ways to execute against them. I can think of 20-25 plays they just don't defend all that well.
The Chiefs game was interesting to watch. Atlanta dominated, moved the ball, had no turnovers, but couldn't punch it in. The Chiefs took advantage of the few opportunities they got, ran the ball, had turnovers, hung in there and just toughed Atlanta out.
The Pats are one of the more physical teams the Falcons have faced. The Falcons may be the fastest team the Pats have faced. I'm not confident because this game is very hard to predict.