I don't see it as a cheat. As I mentioned in the question, the exposed abs and chests wouldn't fit in with Sideshow's more realistic take on the line. Sure Zartan isn't ever going to be 'realistic' with a color chaning feature, but still, exposed abs makes no sense when the rest of your torso is armored. Even if I had a 6 pack I wouldn't show them off and risk taking a bullet there.