UEF and Cybran t2 transports can be used for ghetto gunships because they have an air-to-ground gun. The Illuminate transport has no A2G weapon, thus can't target anything if filled with LABs. The shots scatter to all sorts of units except the one you want to hit. Even an unupgraded ACU can defend itself from t2 Illuminate ghettos by spamming unfinished structures around itself, which the ghettos will automatically prioritize. The ACU receives 0 damage and the player has INFINITE time to bring or even newly build mobile flak or interceptors from anywhere across the map.
Inb4 balance discussion shitstorm, this has borderline zero balance implications because t2 flak is the hardcounter to any t1 and t2 air. There is no sane argument for why the Illuminate have all the means to build a t2 ghetto but can't target stuff once they have it.
PS I hate insects