To be fair, we have no indication of how seriously they follow the holistic evaluation (med admission buzzword), and it doesn't mean they value all things equally. As an institution, they can opt to value factor X over Y as they see fit... They will look at everything, but if you have 500 hr research and lived in the city vs 5000 hr research and lived rurally, they have two factors... They don't need to value research and "likelihood of engaging in the community and working in the area" the same, and if they don't value them similarly, they aren't weighted equally. The class makeup, "mission", etc all play into what they value, but not all things are important to them even if they promise to consider them.
All that should matter is that they value you enough to invite you. Above an MCAT of ~27 the correlation with usmle seems to fall off anyways, so it doesn't matter for you moving forward.
If you think they don't value you (in part) because you're underrepresented, you're missing something; as you said, it's a package they are looking for. There are a lot of valuable reasons to have a diverse (race, SES, regionally, linguistically, etc) student body and future physician population, and you should focus on what you can positively and uniquely bring to the table rather than attack people who generalize. Some people will say that's why you got an II, and the best way to shut them up is to ignore them. Antagonizing them in return just keeps this crap cycling. This is an opinion built from other threads you've posted in too...