When I initially read this post, I thought you made a pretty good point. Still do, but here's a little of the difference between what Tennessee will be and what Oklahoma and Mississippi State are:
Central Florida was 110th in time of possession this year: 27:30 per game. The year before, they were worse at 25:42 per game.
Oklahoma 2020: 25th at 31:48.
Mississippi State 2020: 43rd at 30:57.
It is not simply that all high scoring offenses are the same. You can go TOO fast, which is why most teams have stopped using pure tempo 100% of the time. It is not a means by which you can have consistent success, especially at the SEC level.