Keep in mind, guys - the mindgame of interviews is highly variable from one program to another. This study only tells you something you already knew about pediatrics (if you have been paying attention) - interview scores mean MORE than step scores.
Applicants are more than numbers on a piece of paper, residents know this and so do PDs and other attendings, thusly, it makes sense that interview scores are more correlative.
My question for you (not you directly, the collective you) is this: if you had an abrasive interview and felt like you didn't fit there, is this REALLY a place you want to spend 3 years training?
People wonder often if interviews such as this are representative of the dynamic at a program, as a 3rd year resident I can tell you the answer is yes, and no. Meaning, there is always the possibility of getting a dud interviewer. But you have no way of knowing as an applicant (unless you are from that institution) if this is true, OR if this is what the faculty are generally like.
My advice -> go with your gut, if you are having a feeling like something isn't quite fitting with your personality, do NOT ignore it...this will mean so much more than the prestige of a program, or anything else.