These things really need to be handled on a case-by-case basis. Widespread disaggregation of "Asian" by national origin, ethnicity, and income level would be helpful.
You guys don't care about people in poverty anyway. This is a classic yellow avatar race-baiting thread.
If Yale was promoting the applications of African-American and Hispanic students to the exclusion of impoverished Americans of Vietnamese, Cambodian, etc descent that your HuffPost article is highlighting, then this might have merit. I doubt that was the case here. The point of affirmative action is to help underserved groups get a footing in career tracks they previously haven't been able to. So that would mean you would prefer that application to groups who are already well-established. Given the fact that America's universities are already representative to a disproportionate degree with Chinese, Indian, Japanese, and Korean students, plus academic tourists from those countries (especially China) that would include them as well.
AAPI Americans and foreign nationals are counted separately in campus profile reports... And treating them as if they're interchangeable contributes to the perception of Asian Americans as "perpetual foreigners".
Also- if we use median household income as a proxy for general affluence, Chinese Americans are below the AAPI average, while Vietnamese Americans are close to the same level as Korean Americans. So not particularly well-off on average, but not really equivalent to Cambodian and Hmong Americans either.