Yes the percentages seem to point for the PAts going for it yet they still kicked the field goal. Again using this threads logic in which it seems plausible that TB can score twice in 27 seconds, than it stands to reason that it is much more plausible that the Rams could score twice in a 1:12. (needing only a td and fg. If NO kicks the field goal TB needs two tds) Bottom line is Pats kicked the field goal when there was much more time on the clock, much easier to make a first down and much harder to kick a field goal.
If you go for it and miss...
Do you think it's easier to score once in 70 seconds from the 24 yard line?
Or to score twice in 27 seconds from the 2?
Hint: one is possible and one isn't. Therein might lie your answer.