Running to ball 3 times is really the only play. Cannot afford for the clock to stop on an incomplete pass. It would not have been crazy to go for it on 4th and goal from the 2 but bleeding the clock down to 16 seconds up 5 was logical. A defensive lapse on the last play and Gronk slipping made the decision look worse than it was. Defensive play call works 99% of time. Just had to make a stupid tackle.
The 3rd down play would have ended the game if they threw a pass and scored. I'd trade that for 30 seconds of clock every time.
The reason Gronk slipped is because he's a TE, not a tackler. He sure looked like it too.