Qualify it all you want but either god is all powerful, and he willfully allows everything to happen, or, he is not, and bye bye
infallible superior being.
According to the Shi`as, they have had virtues and attributes which have
been superior to those of anyone in their time; they
were endowed with greatness and the ability to perform miracles; they
were infallible and innocent; each one
was introduced by the previous Imam as his immediate successor; the Prophet referred to them by name and designated them by number; they gave the best and clearest statements concerning the origin of man and the Day of Resurrection; and after the Prophet they
were the best authority to speak about religious affairs and conduct in the affairs of this world.