It does: the primacy is that a person always has the choice to cease providing metabolic support of another person. If you take this as primacy then consequential death as a side effect of exercising that choice is killing, for sure, but a distinct category of killing with regards to culpability. Analogies fail: abortion is a unique form of killing by ending internal biologically bound sacrificial life support, so it’s best to not reach for analogs.
I would say for full consistency with this it would imply abortion providers ought to take steps to not directly inflict harm, but practically speaking death is assured under this framework and so perhaps that falls onto questions of suffering vs painless death.
Edit: To be more direct, the killing is considered acceptable since the alternative is less acceptable: namely, that a person who is providing biologically, metabolically bound life support to another via an umbilical cord is not permitted to cut that cord of their own agency, under penalty of law.