Well, I wasn't the one that introduced the absurdly powerful setup of machine intelligences so dense they collapse in on themselves that exist outside of spacetime. And conveniently existing in said space makes you immune to Moira's wipes. If the goal is 'Mutant Survival' that is the ultimate survival tactic. It ensures the Mutant mindmass survives and untouchable and they can kill Moira and reset their enemies to ensure they have the permanent advantage.
Of course, there's other ways this could go but the theme of 'Survival, but at a cost that is unacceptable to some" is something Hickman is likely to dip his toe into.
Also, getting rid of a very independent and demanding member of the council would look shady as hell to the rest. It'd slowly peels away the veneer of who's really in charge.