The new GAC system is fair in the sense that one is expected to win 50% of matches. That indicates you are meeting fair opponents in the long run. I know there was an argument that one can hit 50% win ratios by always beating absolute trash opponents 50% of times, and then hit absolute insurmountable opponents in the other 50% of times. In that case, it is indeed all unfair matchup, but I wonder how many matchups is like that. I see mostly all matches up are winnable.