I am an alum from long ago.
There is something about Duke which is hard to describe. The school is not ideal for a sport like distance running, where distractions have to be kept to a minimum and tremendous effort is required.
Factors:
I think the social aspect is over the top, and creates distractions which don't benefit some students. I do understand its reputation as a work hard play hard school with a fine academic reputation, but again, its social life doesn't serve everyone well.
The academic experience in and of itself is excellent, especially if a student does not shy away from challenging courses. The educational experience is very, very good.
High mileage is necessary. But if you come into fall out of shape after a sedentary internship over the summer, going from 35-40 miles a week to 80 immediately will be a disaster. Lots of dead legged, dispirited races will obtain.
Using running to get into the school is a fine coup, but hardly the right kind of motivation to succeed. Being on scholarship actually makes this situation worse, not better, because the stress and pressure only makes the motivational issues worse.
I could go on...but again, the education is first rate....