NEED ADVICE! Medical school LOW GPA HIGH MCAT

I really don’t know anything about medical school yet (just dappling in it as my son’s girlfriend is starting the process of applying this month) but one generic question…there does seem to be a take here that the chances would be very dim for this student given the earlier GPA (and despite the strong score)…is that because it’s so insanely hard to get into medical school (any medical school) that you pretty much need to be stellar going out the gate?