I agree with this.
However, there is some truth in the comment above that one, where the person said that research can matter most @the top research institutions. I think that once you get in the "possible interview" pile, then having a particular research interest(s) that matches one of the faculty there can be super important. Also, if you are able to sell yourself during the interview as someone who is going to gel well w/their ongoing research projects, that can be a major selection factor.
Cardiology and GI are so competitive that EVERYTHING can matter...the particular weight given to different facets of the application really does vary across institutions, which is why it is good to apply broadly, particularly if you aren't sure how competitive you will be.