I never got a straight answer from anyone when I didn't match, and while on the interview trail the second time, it was a common question. On one of my last interviews, I finally asked an interviewer at the end of the time session, why I didn't match. His answer was the best I got. There's too many qualified applicants with too few spots, so some people go home empty handed. My numbers, grades, letters, weren't the reasons I didn't match. I doubt the research was why you didn't match, the reason you probably didn't match is because there was 100 other guys with the same application, suit, personality, etc.
I did a prelim year and matched the second time around. I worked my ass off and sacrificed everything to get it. The battle is all uphill and there will be a stigma towards you. If you really want it that bad, you have to persevere.