This is true.
When Iowa played a decent team, like NDSU for instance, how was their awesome run game? I'll tell you... 34 TOTAL rush yards and a 1.4 yd average per rush.
Now when they got to their B1G schedule, then things eased up a lot for them and they played easier defenses than NDSU, so they racked up a lot more yards.
How this OL of Iowa's won any kind of awards, or were even nominated, is still beyond me. Sure, they were a good rushing OL, but a dreadful passing OL. They should not even be mentioned in the same paragraph as Alabama's OL, but yet they somehow beat them for this award. Obviously this award is a joke. 34 total rushing yards against NDSU!