I definitely subscribe to this theory as well, but if you dig into their data some more I would have been curious why Otha Foster was able to have 4 picks and 7 PDs in 2011 and follow that up with 6 picks and 12 PDs in 2012 The more I dig into their numbers the more I would have thought they were just suspect and would have stopped 'wasting my time'.
Thought about that as well. Every situation is different...but a couple thoughts..
1. Dude is simply good. So even in more limited opportunities (Ie teams actually do "go away from him"), his experience (gained in part the previous year) made up for it and he capitalized on those fewer opportunities.
2. His running mate CB was good as well and there was a "Damned if you do damned if you dont" thing going on.
3. He constantly matched up with the opponents best WR. Offense is going to try to go to that star WR regardless of the reputation of the guy covering him (Think Rice covered by Deion.) allowing CB to make plays.
3a. Defense coach was very good at putting him in a position where the defense couldnt avoid him (Maybe as a CFer or maybe doubling the other side creating a "My Island" situation where offenses still felt they had the advantage and went at him)
3b. Defense front was stout /good Pass Rush caused rushed throws he was able to take advantage of.
Just some random thoughts that seemed to fit the theory.