Either way, the whole thing is pretty silly. No matter which version you're watching, the whole thing is over in a fraction of a second and neither version is particularly graphic or violent. There is no blood, gore, or strong change in appearance to the body. It's just a red line hitting a chest. It all happens so fast that I never even noticed the change until seven years after it happened, and only then when I read about it on a website.
Once again, compared to the burning skeletons of Owen and Beru, the numerous losses of limb in later movies, and the whole Anakin burn victim thing, it really makes me wonder why Lucas would feel that strongly about something so minor.