You have artificial intelligence all around you that is benign. Your car runs on AI and does what you tell it to do. Now consider automatic braking for crash protection. I may decide that to accelerate will best save you to get out of the way but the automatic brake decides no for me and I am dead.
To put AI as the final decision outside of human control is a stupid conscious decision by fools.
Never let it rule or make the final decision.
In the case of a rocket ship a human cannot do it as well as AI. But if the astronaut decides otherwise by use of the sixth sense like perhaps he felt a shimmer that perhaps today is a bad day to fly and to abort meant to live another day and try again, allow for a kill switch and abort.
Humans extend into the supernatural as cognizant beings with feelings and emotions. AI does not.
Use it as the dumb machine that it is.