This is an important topic, but as often happens, the article just treads the same old themes. It's looking for answers in the usual places, when it's not clear the answers are there.

First of all, Asian Americans are still overrepresented in tech leadership positions. Just less than they are overrepresented in tech positions in general. So looking for a negative (discriminatory) effect may be the wrong thing - we may need to look for less of a positive effect instead. That's harder to do, of course.

Second, while the stereotypes described in the article may well play a role here, there are other explanations that are overlooked but may matter as much or more. We know that height is a significant factor in earning and in particular in getting to leadership positions. It's of comparable effect to the gender gap, but not as studied, because it's not "interesting" - US culture is focused on looking for discrimination on the familiar axes of race, gender and sexuality. But just like height might explain women's relatively low leadership rates, it might explain Asian American's, as they tend to be shorter.