In such a world AI can still cause huge amounts of trouble if humans can’t understand what it is doing. Rather than “taking over” in a single unanticipated shock, the situation can deteriorate in a thousand tiny pieces each of which humans cannot understand.
Some would say this has already happened, even though (some) humans do understand (and object) to what it is doing, most do not understand, and the ones in control of the AI do not object.
Some would say this has already happened, even though (some) humans do understand (and object) to what it is doing, most do not understand, and the ones in control of the AI do not object.