It's actually quite common for the same team not to beat the same team twice too. "According to statistics gathered from College Football Data, from 1950 to the end of the 2019 season, there were 78 rematches during the same season.
The winner of the regular-season game won the rematch 44 times or
56.4% of the time.
According to research produced by the NCAA a few years ago, 20 of 33 conference championship game rematches resulted in a win for the team that also won the regular-season game —
60.6%."
Do you guys ever do any research before you spout off your nonsense and make mistakes?