Just because you youngsters grew up in an era where we didn't play OU every year doesn't mean most Husker fans don't remember that series fondly. You guys too young to remember those games are in the minority.
And while it's true that the RRR is a bigger game for Oklahoma, it's also true that they LOVE them some Nebraska, too. I talked to a ton of their fans this last fall when they were here and every single one of them was clear about how much they miss the every-year game with us.
We don't have to be Oklahoma's #1 Rival to have a good series with them. Until the last 15 years, the RRR game was just for show - not a lot on the line, and Texas more often than not wasn't a great team against OU. The most impactful game the Sooners played most every year was against NU, for the Big 8 title and a trip to the Orange Bowl. Believe me, they remember those days fondly.