That is a vastly wrong interpretation of what happened. Most people just go into part 6 not wanting to read it, so they try to read as fast as possible and end up missing most of what is actually going on. Seeing as you already have an understanding of the universal reset, I'll explain, but it's all spoilers from here. Father Pucci is continuing what DIO was saying about human lives being lived to escape anxiety, and going further to say anxiety comes from not knowing our destiny. Using Made In Heaven, he accelerates time over the universe so that the end of the universe is reached, but he keeps humans at a slower perception of time so that their consciousness will survive. He then drags those consciousnesses into the new universe which is formed when the old universe ends. People at first are forced to follow the same paths they walked in the original universe, but then Emporio kills Pucci. Time continues accelerating until this universe too is ended and restarts. Emporio is outside of the effects of Made In Heaven, so he remembers both past universes, but no one else does. Because Pucci died while accelerating time, he does not exist in the new universe. So, all the main characters are living the lives they would have without the traumas he inflicted on them. It's said that the characters we knew are dead, but their fight against Pucci was not in vain and they managed to make their own happy lives against the destiny he would make for them. Steel Ball Run is not set in this universe, but a completely different one.