It's Harvard we are taking about, not a community college. Someone in admissions knew it was happening and let it keep happening. If you are willing to say unintentional means knew it was happening and didn't care to stop it, sure it was unintentional. The issue I have with that is if the same thing was happening but you replaced Asian with African, people would be up in arms. Such a double standard offends my sense of equality.
It's quite easy for a bunch of non-racist individuals to create a well-intentioned system that has a racist effect. It happens in many institutional systems, this year's Pulitzer prize went to a guy who showed that D.C.'s well intentioned and black-run criminal justice system discriminated against black people in their own city.
When you have systemic problems like this, you can't just swap out some individuals, you need to fix the system. My original point is that increasing Harvard's class size will be a necessary component. It may also require a change of leadership (e.g., president or dean of admissions), but this is not a personnel problem, it 's a structural one.