The first female storm trooper.
Super soldier Mother hen to stormtrooperbabies fresh out of the can.
If control is an issue, brainwashing.... Then Phasma should have been imprinted as either the Stormtrooperbabies, the entire liter, as mother or lover, not that she has to love anyone back. Meat for the grinder.
I'd suggest why Finn's programming cocked up, how in the beginning he wouldn't follow Phasma to the ends of the universe, becuase he loves her truly and yet wants nothing in return... Is becuase he is gay.
An inherit disconnect.
I'm not suggesting failed gay conversion, instead I'm saying that no one asked 10 year old Fin if he dug boys or girls, when they started stormtrooper indoctrination, so his "training" was never going to stick.
If he isn't in love with Phasma, or can't be in love with Phasma becuase she is a woman, then why would he kill and die for her?