I hate to break this to you skippy, but the score was 17-9 at the half. The first series in the 2nd was a 3 and out. New England kicks a FG, still only 20-9. Steelers drive to the NE 39 and stall. They punt, NE drives for a TD. Rogers fumbles. NE scores again. Turnover on downs at the NE 2. Defense holds, punt. Ben throws a pick. The INT came in the 4th, not the 1st/2nd/3rd.
They had PLENTY of opportunities to score and failed. To not acknowledge that part of the game is idiotic at best. If they can convert a couple more 3rd downs, maybe get another FD at the NE 39 and get a FG, score from the 2, that is 10 points in the Steelers favor, maybe the defense has rested more, maybe play with better intensity/motivation and limit a NE score. So, instead of 27-9, maybe it is 20-19 heading into the 4th quarter.
Again, you fail to recognize how games can change on specific plays. It makes me wonder if you ever played a sport.