Holding favored minorities to lower standards has permeated every institution, including medical schools, at every level because people are afraid of being called racist.

"Racist medical school fails african americans at higher rate than asians!" would be the headline and there would be no defense the critical race theory mob would accept.

You have the wrong analogy as well, MCAT is extraordinarily thorough, so instead of evaluating on someone's high school GPA, it would be like evaluating them on an all-day entrance interview on which you evaluate them on their knowledge of software engineering, hardware, various programming languages, and their libraries. And many questions from TAoCP.