*advocates applying the results of population studies over
mechanistic reasoning * in diagnosis, prognosis and therapy."
in short, it has to do with population generalization and the
overuse of it. It *is* overused. Things with nice neat lines
like physics are easy to use statistics with. Messy things like
biology don't conform as well to statistics, medicine even less
so. Case studies are appropriate generalizations - and they're
not even generalizations; they're case studies - archetypes
that, when considered in an overlapping fashion, can lead to
some similarities to a current case.
They work.
Statistics are alluring and tempting but they're not appropriate
as the MAIN basis for diagnosis, only as a supporting role.