If anything, I would expect this should improve someone’s willingness to go to OU. The University acted quickly and justly. SAE is a generic fraternity. They have chapters at almost every college that allows fraternities. They are generally disliked by other fraternities and non-Greeks alike (in my experience). Even SAE shut their own chapter down (though I must say they are not much different at other campuses)
Ultimately, this is less about racism and more about rich college boys being idiots. The racial tone was awful, but judging by the outcry by nearly everyone on campus, any racial bias is fairly narrowly held and likely exists at any campus in the US.