If the process is releasing a STOP (removing or soft-deleting a STOP instruction logged in the DB or some such) then whoever worked on it initially may just have not thought beyond that (especially if English wasn't their first language so unstop might not have sounded any stranger to them than restart). Once something like that is written down and others have seen it, it tends to stick.

Of course it could hav ebeen done by someone like me, who is know to give things technically-correct-but-odd names deliberately…

It's because of the US Constitution and voters' very firm, consistent, coherent stance on bodily autonomy. Even if we consider it to be costing a life, your say over your body is considered absolute, and no federal, state, or local government is allowed to pass legislation that influences what happens to your body.

Just kidding! It's all determined on a case-by-case basis depending on the most conservative perspective of the dominant, favored religion.