magazine published a rape on campus in november 2014 issue .
graphically recounted supposed gang-rape of university of virginia student .
sabrina rubin erdely wrote article based on interviews with victim ` jackie '
did not speak to alex stock or ryan duffin , who were portrayed poorly .
they could have revealed jackie 's unreliability before story went to press .
duffin today took the magazine to task and said its reputation is shot .