You didn't look real hard then. The upper deck was loaded along with many in the non student section on the east side. ISU has 50k as a base and that includes Kansas where they bring about 5 fans. That would overflow the stadium.Thanksgiving weekend. The only seats open were in the student sections. Iowa State brought the most opposing fans I've seen there all season but I wouldn't exactly call it poor attendance.
Iowa State had their contingent in the Se corner, besides that I saw 2 or 3 redshirts in every section.
There were also many seats open as I looked around. Nearly a whole row behind us and some huge gaps Infront and to the sections over.