Bama, Georgia, A&M, Florida, SC are all good enough to beat us. Doesn’t mean we should predict loses to all of those, but it does mean they’re all possible. You can’t predict things like dropped balls, fumbles, tipped balls, pass interference calls, etc.
Or think of how important a well thrown deep ball is in any game. That could easily be the difference in 7 points. And even the best QBs are probably hitting those around 50% of the time. What happens if their QB goes 3/3 on them?
So it’s easy to have a wide margin of error in any one game.