If you can get scoring within 0.5 points of accuracy, the chance of a tie is 1%. If you can get scoring within 1 point of accuracy, the chance of a tie is 0.5%. Kind of. When it comes to actually tying the score, there really is way too much to take into account. In many cases, for a single judge it wouldn't even be possible to accomplish because the breakpoints happen to be in different spots, meaning no matter how they score whatever elements, it's still never going to match exactly.
Safe to say it just was a coincidence. You could say that the judges tried to get their scores as close as possible, but actually trying to match them would be too difficult.
Thanks guys for all your input. I wonder though if the judges wanted Medvedeva to win or not...I guess we will never know.