What are University of Missouri-Columbia's averages?
I looked at your MDApps profile. You have a 4.0/37 and a great EC's. They probably rejected you for the same reason Southern Illinois or even Georgetown rejected me.
Basically, you're significantly overqualified for U of Missouri-Columbia's medical school. Perhaps their school history has shown that virtually nobody with a 4.0/37 with outstanding EC's has ever gone to their school. They probably expect such an applicant to go to a higher ranked medical school than theirs.
As such, instead of wasting their time and your time, they decided to not offer you an interview, because they are 99% sure that you wouldn't go even if you got in.
EDIT: Your MDApps also states that you applied to Southern Illinois. With a 4.0 in Biomedical Engineering and a 37Q MCAT score, I found that to be extremely humorous. It's good that you withdrew your application from Southern because they would have rejected you pre-secondary too.
A small segment of your list of research honors:
2 summers of NIH funded research
1 year + 1 summer of research at Northwestern University Medical School
1 summer of research at University of California, San Francisco
1 year of research at Case Western Reserve University
1 small publication, first author
LOL, I doubt anybody in the history of Southern Illinois Medical School has had a list of such research accolades.
Considering that you still have open applications to Harvard, Wash U, Stanford, etc etc, I doubt that you have much to worry about.