Wow, that was almost exactly the scenario I spelled out. Just +6 points for both teams.You've got to kick the extra point and make it a one possession game at 22-14.
If you go for 2 and score (22-15) you have a better chance of winning than you do at 22-14 but it isn't worth the risk of failing - fail and it's 22-13 and you have to score twice (with one being a touchdown) to win.
I think Sean Payton is a heck of a coach, but just because he did it, does not mean that it is the right tact.
That is why I posed the scenario in the beginning, because I think conventional thought is misguided.
And no one's made me really rethink my position.