Not sure I understand what you're talking about. How is this notably different than...
2009 Missouri when we were down 12-0 in the fourth with a completely anemic offense?
2011 Ohio State when we were down by 21 points halfway through the third quarter?
2012 Wisconsin when we were down by 17 points halfway through the third quarter?
2013 Northwestern when Tommy threw three picks, including one with only 2:25 left in the game, and we won on a Hail Mary?
2014 Iowa when we were down by 17 points halfway through the third quarter?
If a receiver goes out of bounds and catches the ball, or even touches the ball, it's an incomplete pass due to the ball/receiver being out of bounds. The kick returner didn't go out of bounds and then come back in bounds.