I did a test of INT's as you suggested. Over a 30 game sample the results were:
Regular (48/43/49): 59 total INT's, 1.97/game
Terrible (43/2/3): 68 total INT's, 2.27/game
I'd say the difference is probably not large enough given the ratings spread, especially since you'll never see a 40+ point difference in the two main core ratings in any division.