Something i think people need to remember is that in real life, when there is a '15 mph wind' in your face on the tee, it could be totally different 100ft in the air. Wind is not some magical formula that is consistent and predictable. It swirls, it fluctuates and it even reverses.
It happens frequently in golf that a shot does not do what i thought it would do on the the actual course and the same is true in this game. If it was 100% predictable the game would be too easy and becoming boring very quickly. I don't know if the variances are intentional, but i would venture to say that they are and if they are, I am all for it!