That depends on who's defining "qualified." If it's the university, then surely they get some say in what qualifications are important. And if the university considers that exposing students to diversity of various kinds is a valid goal, then it's up to the university to build a diverse community.
Grades aren't the only arbiter of who gets into any given college. They matter, but just as being an asshole is a disqualification for some jobs, there are other things to consider. I believe the SC is saying that diversity targets cannot include race as a criterion. So I guess that means that they can include membership in the NOI, along with NASCAR fandom, in the considerations of diversity.
Note that the University of Texas gives preference to some top percentage of all high schools in Texas, and provides a tuition waiver for the first year for any valedictorian. That's one way. Schools are going to have to find ways. Of course, schools that emphasize "traditional" (i.e. back to the 1950's) can keep admitting good Christian kids, and ignoring noisy minorities, possible feminists, and boys and girls who dress funny. Thereby producing graduates who aren't equipped to deal with who's actually in the workforce these days.
Wendy P.