That article has all sorts of wrong in it. It isn't even worth discussing. Maybe Alexandra Robbins can use it as source material for a sequel.
Let's face it. Recruitment anywhere requires some judgements to be made, from both the sorority side and the PNM side. If someone isn't comfortable with that idea, they probably shouldn't go through recruitment, especially at a competitive school. Sororities are selective organizations.
I've got to go take off these sorority issued spanx now. They're just killing me!