So let me get this straight. This PA is basically compound Tech, except its balanced in a way where sub classes matter very little and judging by how the icon behaves the Complex PA Button will change based on which Weapon you currently have equipped (JB and Launcher are supposedly next).
Meanwhile Fo and Te's combound Techs waste a whopping 3 slots on the subpallete and they are highly dependand on Class skills in order to work properly (for example Te/Hu might not even bother). I think those need to see a revision if each class will have their own complex PA that allows to burst regardless of preferred class combo (unless Rod, Talis and Wand Complex PA will be a thing but in that case my Subpallete will literally die).