It's not a no brainer, with time running down you're not guaranteed to get that close again with a kicker with a strong leg and the wind at his back who can hit a longassed FG, if you need it after recovering an onsides kick...Had they not pi$$ed away the bulk of the time they had to work with they probably would have taken the points, but moving the ball with less than 2 minutes, for this team? Not exactly the no brainer we might think it was.
And full disclosure, my first response was "kick the ball" too...until I thought about it some more.