I am unsure how you would perform anything but lip service to holistic review with MCATs medians of 38 and gpa medians of 3.9. just by creating a class with those medians you are limiting the pool of applicants you will review to a small number of people considering the small population that actually has those scores.
DO schools on the other hand are not burdened by such constraints . Having a less competitive pool means it's a larger pool to choose from based on the score distributions in a bayesian
LizzyM distribution. Some top MD schools discourage community college credits and other will not accept pre-reqs older then a set limit. All of these criteria are against the concept of supposed holistic review. These top schools also tend to fill their classes from graduates of t 20 undergrads once again empirical evidence to the contrary.
Look at the msar , most top schools have gpa and sgpa 10 the percentiles above 3.5. hardly sounds holistic. 90+ percent with research experience hardly sounds holistic.