Is this even true or just virtue signaling? I was an applicant last year, hispanic/latino, and according to this forumn I would have been ORM (argentinian). I am essentially a traditional with a 514 MCAT, 3.9x, pretty good research, top undergrad, and got acceptances at multiple T20s including places where I'm well below 10th percentile MCAT like WashU and JHU. I also paid (am paying) full tuition, not that it mattered (jokes, I'm sure it did...).
Not to beat around the bush but we all know once you check that hispanic/latino box, you qualify the school for stuff like NIH funding and other research/general diversity funding that schools eat up (unless of course you are literally just not hispanic/latino or are one of those 5% mexian from 23andMe people). MSAR only reports hispanic/latino, no one actually subspecifies. Most of these schools treat us like scatterplot points anyways with our MCAT/GPAs just to get a .01% increase on USNews, so I really don't see how the diversity situation is any different. I read stuff like this then think of my app which was a metric mile worse than the average asian applying to top schools and I really don't buy it.