I think it's mostly people that haven't actually watched OU throughout the year seeing that A. They have a freshman QB, B. They lost a couple early games, C. They are winning big now.
Conclusion: Rattler is figuring it out and getting better, as a result OU is vastly improved.
Reality: 1. They started the year playing better teams, now they are playing the bottom of the conference. The exception is OSU, but they were already pretty decimated physically, and that Texas loss seemed to break them mentally. 2. Watch Rattler vs. ISU and KSU. He was very good, but when he got some pressure he made some questionable throws. Watch Rattler vs. Baylor. He was very good , but when he got some pressure he made some bad throws. The idea that Rattler struggled early in the year is completely false. He was really good. He happened to be playing ISU and KSU at full strength. The idea that he's lights out now is also false. He made some really bad decisions vs. BU and got away with them. I'm sure as any QB in his first year starting he has improved as the year has gone on. But I think people are using the lazy explanation of a Freshman QB "figuring it out."
They got some guys back on DL and RB. So they are better. But I'm not buying that they are night and day different from when ISU played them. I guess we'll find out.