Great point. What if a person doesn't have a KJV and can't get one? Can they be saved?
Speaking for myself, I appreciate ALL translations, though I generally find issues with them all. What is important is that we do not get our feathers ruffled over issues that do not matter, such as who bought the Field of Blood and what happened to the silver that Judas was paid. Who cares! But if we look closely, Circumcision of the Heart is not lost, whether it be the Catholic Bible, New World Translation (Mormon Bible) . . . they all explain Circumcision of the Heart . . . perfectly.
It's pretty difficult to botch a doctrine if translators are blind to it.