I know you like to come here to argue and try to make yourself look smart so I won't bother.
What he says is a major factor. Football is a very emotional game. It's hard to sustain emotions that long, particularly when you win.
Did you hear what A.J. McCarron said about Alabama's chance to three-peat. He said many of the younger players didn't have the discipline, the mental composition to compete for a third championship. They thought that they could just "show up" and win games. But it doesn't work that way.
The Bills 4-peated in terms of getting to the Super Bowl. But I honestly believe had they won one of the first three, they wouldn't have gotten back. Their motivation was losing. It's different when you win.
I don't see the Seahawks three-peating. In fact, I don't think you'll see a team three-peat. The dynamics are just too different now with free agency, distractions, etc.
And you have to remember that when the Cowboys won their games in route to Super Bowls, they
DOMINATED opponents. They beat San Francisco by 10 and 17 points. They beat Green Bay by double digits. They beat Philly by double digits. And they beat their Super Bowl opponents by double digits.
With all due respect to the Seahawks, they beat the Saints and the Niners by single digits. The games were a lot closer than the scores. And as someone already pointed out, the Niners aren't that far behind. Neither are the Cardinals (who beat them) and the Rams. Those teams will be gunning for the Seahawks.
Furthermore, no team that Seattle faced really had a running game. You know how to beat the Seahawks? Invested in an offensive line and a workhorse running back and pound them. Take their secondary out of the game. Frustrate them instead of letting Seattle frustrate you. While I like Russell Wilson, he's not Drew Brees, Tom Brady or Aaron Rodgers.
They may win back-to-back but not a three-peat. Of course, I could be wrong.