The problem is that this class is frequently on the pre-med track, and a single F will tank your chances of getting into medical school, even if you retake the course and get an A.

The primary objective of students wanting to get into medical school is to get a high GPA, what specific courses they take and what they learned don't end up mattering at all. Very little of what they learn during the 4 years of undergrad will end up applying during medical school, residency, and their careers.