Per the Savvypremed Site, Highly Selective Colleges Among Top Choices for Medical School Aspirants

It’ s a mistake to compare medical school applications to law school applications, at Harvard or any other school. The processes are significantly different and really aren’t comparable For example, there are no committee letters for law school.
And it appears that whoever made that presentation was taking a good deal of license regarding statistics. I’d be glad to be shown the information that supports this statement:
“Top 15 schools put the most kids per capita into med school year in and year out.”
Since you cited ND, I checked their website and can’t find that information.
But ND’s website did have this “Regardless of major, 84% of Notre Dame pre-med graduates are admitted to medical school—that’s twice the national average.” It’s interesting to note that ND doesn’t disclose how many started as pre-meds.