without know actual ticket sales for the students, I can not say for sure but.......not all student tickets are free, they changed it this year so that the first so many are free and when those are gone, students pay 5 dollars (I believe).
That said, I agree with you that it is kinda pathetic that they can't show up. Come on, you complained last year that the games at 1pm were too early, and this year they have been at 4pm so far! There is no hockey yet to line up for? And that said, I went 5 years to UND and my friends and I as well as other friends managed to make it to football and hockey when they coincided, it is not that hard. Sorry, but a little frustrated that the students don't seem to care about all of their teams and the Athletic Dept is trying so much harder than they used to to get the students involved.