You just said it's getting harder to control, so it being an easy scapecoat like you said is contradicting your original opinion. With this post, You're living by "what ifs" which isn't really…I dunno...Fair?
I don't know, when a manga character tells you how dangerous it is to use some power, do you take their word for it, or do you actually wanna see it happen. Did you believe the Kaio-ken could kill Goku? Do you think the gears will ever cripple Luffy?
Expected negative consequences should occasionally arise. Otherwise, what was the point of worrying about them in the first place? If Guts uses the armour a dozen times and both he and everyone else always come out of it alive and relatively uninjured, then it obviously isn't as dangerous as we were led to believe.