With minority govt. quotas required for the universities, it was easier to pass a failing minority Obama and keep him in school than it was to flunk him out and find a replacement.
I have thought the same due to my own experience teaching in a community college. I was pressured by administration to keep "minorities" passing.
I am not a teacher by trade. I spent many years *doing* the job and made the career change because I felt I could make a difference in the quality of new graduates. When pressured to keep the minorities passing instead of handing out unearned grades I spent off hours tutoring the students to keep them at passing level. I had taken the job to improve the quality of fresh graduates in my field. It became crystal clear while working at the college where fault lay in the deficiencies of new graduates. Not with students but with administration.