> About 80 percent of the seats went to Asian and white students.

It seems very strange to lump these two demographics together. Presumably Asians make up a smaller chunk of the school-age population than whites. By reporting them in the aggregate, we don't know if they're both represented/over-represented at the same rate, or whether (as I suspect is true) white students are somewhat overrepresented and Asian students are greatly over-represented.

But revealing this would undermine the narrative that admissions are somehow racist, and benefit white (and to a lesser extent white-adjacent) students. In reality, the students with the highest academic performance are Asian, which would not be the case if the system were designed to benefit white students.