The statistics shown are for law school applicants who are almost all not STEM majors, and therefore have higher average GPAs. Also, even from top schools, students with low GPAs are probably less likely to apply to law school. With Hopkins the issue is not so much the grading, but the intensity of the courses, and students admitted being strong academically and studying hard. That makes it more difficult.
The main issue is with med schools, which look at GPA and do not adjust enough for school. For premed, you are probably better off going to a 100-200 ranked state school. In other fields, getting into a slightly worse graduate or professional school is not such a big issue as “getting in” to med school, and schools usually are aware of how intense Hopkins, or say MIT, is and adjust.