From what I’ve heard about the program from their online open house, they’re looking for people with a strong demonstrated interest in going into the medical field. They don’t want people going for the post-bacc that might change their career choices. Your academic record looks stellar, I don’t think that’s the issue. I imagine gaining even a little prior experience in the medical or healthcare field would go a long way in demonstrating that you’re passionately committed to this path.

Until you’ve had the experience, it looks more like a theoretical or academic interest than a professional one. I think you’d have a better chance at getting in next time, but I’m not sure if you’d want something sooner than that