parts standarization so that mixing up parts can be modular (would be so hard if its on real type), also they take into account the universal cockpit system (you can see it when Sazabi lands on earth, its a torso cockpit compared to the original real type head cockpit), because all of the MS is build in G system (hence why there's no parts customization for MA or big MS like Devil Gundam enemies)
Honestly why make them into chibis anyway the game was kind of taken seriously so I think real types would have made more sense
parts standarization so that mixing up parts can be modular (would be so hard if its on real type), also they take into account the universal cockpit system (you can see it when Sazabi lands on earth, its a torso cockpit compared to the original real type head cockpit), because all of the MS is build in G system (hence why there's no parts customization for MA or big MS like Devil Gundam enemies)