I'm good with the decision to go for it and I'm even okay with the play call. Remember in the Steelers game when they tried to get cute on a 4th and short? The right call then would have been a QB sneak, which Josh makes way more often than not, and that was, statistically, the right call last night.
As for kicking the FG and playing for OT, it comes down to a coin toss. Our D, which was gashed all night, was tired, so I could see them giving up a TD on the first drive if TN wins the toss. On the other hand, if the Bills win the toss, given our lack of red zone success last night, they may have only gotten a FG. Raw analytics say go for it, and the overall team performance last night reinforced that.