The Kharijism in Islam is a concept similar to the concept of Catholicism in Christianity, not heresy (Catholicism is branch of Christianity, Roman Catholicism is the branch of Catholicism and Kharijism is the branch of Islam, Ibaditism is the branch of Kharijism). Ibaditism is only a branch of Kharijitism. Why Kharijitism is presented in game as heresy of Ibaditism?