No, it hasn't been proven incorrect, because it is made up, especially relative to the idea that they are required to stuff the run. Remaining teams rush yards per attempt allowed rankings:
Titans - 7
Vikings - 18
Ravens - 21
49ers - 23
Packers - 26
Texans - 27
Seahawks - 28
Chiefs - 29
Passing NY/A:
49ers - 1
Chiefs - 5
Ravens - 6
Vikings - 7
Packers - 16
Titans - 19
Seahawks - 24
Texans - 25
Offensive Passing Y/A:
Titans - 1
49ers - 2
Chiefs - 5
Vikings - 6
Seahawks - 8
Texans - 11
Ravens - 12
Packers - 17
But please, keep telling me how stopping the run should be a priority, and how the fat guys who stop the run are crucial to getting to the Super Bowl.
It is a passing league. The run game doesn't matter.