Tarelton University (Probably spelled it wrong ) - Why do they not accept the bottom quarter ?

It doesn’t seem like that competitive of a university or highly ranked.
How come they don’t even look at the application if the student is ranked bottom quarter of the class?
Even UT and A&M will at least " look at it "

http://www.tarleton.edu/admissions/undergrads/freshman.html

They do. They call it individual review.