I agree in the sense that Texas had a specific problem with OU over the long term. They "should" have done better overall against the Sooners. You can't control a specific bad outcome in a given season, but overall you do control, year to year, your performance against a particular team you know stands in your way. No reason Texas should've had some of those embarrassing losses to OU, and without some of those Texas does claim more conference hardware, possibly national too.
From a Sooner perspective, it seems like--if anything-- we should have beaten Texas
more over the last 22 years (from 1999--Stoops' 1st season--to the present).
1999: #23 Texas, 4-2, beat NR OU, 3-1, 38-28.
2000: #10 OU, 4-0, beat #11 Texas, 63-14.
2001: #3 OU, 4-0, beat #5 Texas, 4-0, 14-3.
2002: #2 OU, 5-0, beat #3 Texas, 35-24.
2003: #1 OU. 5-0, beat #11 Texas, 4-1, 65-13.
2004: #2 OU, 4-0, beat #5 Texas, 4-0, 12-0.
2005: #2 Texas, 4-0, beat NR OU, 2-2, 45-12.
2006: #7 Texas, 4-1, beat #14 OU, 3-1, 28-10.
2007: #10 OU, 4-1, beat #19 Texas, 4-1, 28-21.
2008: #5 Texas, 5-0, beat #1 OU, 5-0, 45-35.
2009: #3 Texas, 5-0, beat #20 OU, 3-2, 16-13.
2010: #8 OU, 4-0, beat #21 Texas, 3-1, 28-20.
2011: #3 OU, 4-0, beat #11 Texas, 4-0, 55-17.
2012: #13 OU, 3-1, beat #15 Texas, 4-1, 63-21.
2013: NR Texas, 3-2, beat #12 OU, 5-0, 36-20. Mack Brown got an easy win in his last season to finish 6-9 vs. Bob Stoops.
2014: #11 OU, 4-1, beat NR Texas, 31-26.
2015: NR Texas, 1-4, beat #10 OU, 4-0, 24-17. Bob Stoops managed to lose to Charlie Strong's bad Texas team.
2016: #20 OU, 2-2, beat NR Texas, 2-2, 45-40.
2017: #12 OU, 4-1, beat NR Texas, 3-2, 29-24.
2018: #19 Texas, 4-1, beat #7 OU, 5-0, 48-45.
2018 CCG: #5 OU, 11-1, beat #19 Texas, 9-3, 37-27.
2019: #6 OU, 5-0, beat #11 Texas, 4-1, 34-27.
2020: NR OU, 1-2, beat #22 Texas, 2-1, 53-45 4OT.
OU's 15-8 W-L lead over this period is a little misleading for two reasons. Those blowout wins in 2000, 2003, 2011, and 2012 made things seem worse than they were. (And people tend to forget Texas' blowout win in 2005, which I think was the Horns' biggest in the series.) Bob was 8-5 vs. Mack at that point, yet it seemed to many that he was doing much better than that.
The second reason is that, while OU has gone 7-3 since then, the games have nearly all been tough ones. The biggest win was Texas 36-20 victory over an OU team that had beaten Notre Dame in South Bend and went on to beat Alabama in the Sugar Bowl. To OU fans, it seems like we have had the significantly better team nearly every year in this second period, and yet we have struggled to pull out victories in games that very easily could have gone the other way.
All of the "upsets" except for last year were won by Texas.