I think the time in the season and the day of the week the game is played matters more. As I recall (and being too lazy to dig up specific facts), attendance really seems to tail off for home games after the Homecoming game is played and when MACtion weekday games take over. Attendance seems to tank after the Homecoming game generally.
We're going to get a chance for your theory to be tested on Oct 15th vs EMU.
According to the online seating chart from the ticket office, all that's left for the EMU game are about half the seats in sections 104 and 111, and maybe 100 total seats scattered on the west side. Of course, we don't yet know what time the game will start, so that could affect attendance.