Gac is a mode where strategy plays an important part. The point of strategy is getting you in a position to fight an unfair battle. So players who used about the same amount of resources to build their top 80 are matched against each other. The ones who made the ‘best’ use of their resources have the best army and start the battle with an advantage, sometimes a huge one if the opponent made questionable choices (regarding building a gac army, there are no bad choices per se imo). However, there is a point to make in the fact that those choices are definite as you can’t devolve a character. But matchmaking does it job as it allows strategy to play a central mode in the game mode imo.