It may be totally half-baked. Or entirely wrong. But its my theory.
I wonder if McVay and company have done deep analytics on game results and decided that good run defense isn't that important. That while the run may help extend drives, in the end it doesn't lead to greater scoring, especially since it is easier to defend the run down by the goal line, and that it is more important to focus on getting turnovers or preventing explosive plays through the air, because statistically those things DO lead to points.
I mean, if you look at it, our run defense has been pretty consistently dismal this year, and we won 13 games.
This theory would explain why such a glaring problem has not been solved or at least improved on a team that we believe to be generally very well-coached. And the reason they don't talk about it is because it is an advantage that we know this and other teams do not.
Feel free to tear it apart. I am no expert.
