Yes, we all here agree that God doesn’t commonly raise people from dead. Thus, if someone saw a dead person alive again, they would believe that either the person never died, or God had done a miracle. Such an event would have had the power to cause the observer to believe in God.
If enough people saw the resurrected Jesus, they could have started a movement resulting in a new religion that has spread worldwide changing lives and impacting cultures globally…because people continue to experience positive impacts of God in their lives, even today