No way do I think our OL isn't that good at run blocking. I just think it's a different scheme than most are accustomed to. I've heard that what we do is an intentional strategy. The coaches (allegedly) know that running up the gut doesn't usually lead to chunk plays, but it does accomplish two things:
1. Wears down opposing defenses.
2. Limits (almost eliminates) negative plays on 1st/2nd down.
I haven't done the homework, but others have and the data showed at the time that we had almost zero negative yardage run plays (sacks excluded - pause), which backs up the theory about staying ahead of the sticks. 3-4 yards and a cloud of dust creates a lot of 3rd and 3's which are significantly easier to convert than 3rd and 8's. It seems to track.
On a slight tangent, I think Mario coaches a lot like Dave Roberts from the Dodgers. Data, data, data and more data is used to make decisions. I'm cool with that approach to a point; it's just robotic asf to watch.