^Definitely not true.
As an aside, one of the things that surprised me reading the blackat_ posts was that being a POC and full ride was assumed to equal someone who didn’t deserve to be at the school. I always assumed those full ride students were the rock stars. The schools have a lot of applicants of all stripes. They don’t offer full rides to just anyone. Like with college, the people who are likely to get some admissions leniency also include legacies and athletes. And faculty kids. And big donors. But everyone admitted is expected to be able to do the work.
The problem with being the middle class kids is once the slots are allocated to all of the above, there aren’t many left for the average excellent kids. It is what it is.