I think the 141 non-challenge might have been just as big.
Iowa's 141lber is the title favorite. You beat him, while at home, and the wind gets sucked out of Iowa earlier. It has more potential changes to the dual than anything.
Does Swiderski come out more aggressive early and build an earlier lead? Pushing for a Major? Maybe.
After that Major does Chittum ride the momentum and get that takedown two seconds earlier? Maybe.
Does Carr tech Caliendo? Yes.
Does Gaitan not give up that early lead and pull away late for a wide Decision, or dare I say Major? Maybe.
Does Feldkamp come out with a beach ball sized set of juevs and pull the trigger on one or two of those double overs? Yes. Do they land? No clue.
Does Broderson actually try? Probably not.
You're talking that three point swing could have been much more because of it being Iowa State and being home-mat advantage.
That said, while 141 could have been a much more larger point swing, just swinging 174 alone wins them the dual. It doesn't really sway momentum. It may just also give Batista a Tech, because Hill is looking for a Pin there late and gives up a couple/few bad/easy shots. So 18-14 Iowa becomes 18-15 Iowa State.
I could see it either way, but I definitely think it is those two that were the worst.