I wouldn't catagorize down by 14 after 55 minutes the start of the 15th (especially with our offensive & point output in that game). We needed 2 scores and we were running out of time. To me it was a "no brainer" to go for it. We didn't need a haymaker, we needed two of them.
Also, and off topic...we should have gone for the on sides kick after our prior TD, not the last one.