The post you responded to was about how medical schools are “schools” in name only. You may be correct that administrators are useless, but your kid’s experience, assuming they are in medical school is not really evidence because they don’t see more than a sliver of what the school does (and needs to do, by law).
In this case, you've been refuted by an explanation that the growth is almost entirely at the school of medicine, and most of that increase has been in staff that are providing care. And you're continuing to advance the point anyways.
