Premade with no restriction breaks the game. If they allowed a whole 24-player alliance premade into Rival Wings and compete against non-premades, they would probably have a 100% win rate and the opponents get 0%. Premade vs non-premade isn't fair and it would raise the barrier of entry significantly because now you must have good connections to basically form a static and be available to play same time as them to have any chance at making progress on win-related rewards. The only fair way for full premades to exist is separate premade queue and solo queue, the same way rated Feast never put premade against solo players. Unfortunately for frontlines, when matches shrink from 72 to 24 size then a whole force can be a premade, or all the good players can transfer to the same GC and not use freelance to get 100% winrate and unbalance the game.
