Vanier and the CIHR DRA have different selection criteria too. So you may not be ranked top of both because of that.
Hopefully, reviewers are making a fair rating based on the rubric. Here's the guide for reviewers: http://www.cihr-irsc.gc.ca/e/33043.html. If there's a case to be made against that rubric, then I think you should bring it up to CIHR aiden87.
I was rejected for the DRA before. Ratings were hard, but I also think it's in comparison of the cohort. Made more progress in research and publications, and luckily got it this time around. All the best to all those trying for the DRA next year, keep your head up!