True, but the Big 10 is tough again this year, so they also can stumble a few times and still collect enough "good" wins to get in fairly comfortably I think.
Iowa's NET ranking is going to really hurt them if they don't pick up a couple of really big wins. Their out of conference schedule is crazy bad this year. Not playing in a holiday tournament is one thing but then filling out those games they way they did leaves little room for error.