Why do frats not get any credit for diversity?

It’s become pretty obvious at this point that top houses get their 1-2 diversity recruits and the rest is white boys. Some mid and low houses too. But then there are good upper mid and mid houses with a lot of genuine diversity and good kids yet it’s not reflected in their ranking at all. We’ve grown past the need to walk into a frat house and see only white kids. Frats that are able to pull in more than 2 POC should be appreciated and given credit for it. And I’m not even gonna get started on srats.