Compelling argument, but there is a plausible counter which should be dealt with: in some religions, it is believed that the soul is stuck in the body until the body is cremated or otherwise destroyed (the exact requirements vary by religion). In accordance with such a belief, someone can be quite thoroughly biologically dead, and therefore quite certainly not biologically suffering, and yet their soul would be languishing on earth until such time as their body is cremated.
I have no reason to believe that either Mr. or Mrs. Schiavo held such a belief, but such a belief would seem to significantly undermine the argument you gave.
And the exact beliefs vary by religion.
You are saying we should consider many, greatly varying theologies. That is a daunting task.
If you care to tell me the beliefs of the individual theologies about souls , I'd be willing to see what I can learn about them.
Since those religions disagree with one another, a "one size" answer to their concerns will not fit them all.
If you want a more general answer, right now, I'd say: Why the hurry to release the soul? Does it get reused right away? Does it attain bliss right away? Does "right away" even matter in the scheme of eternity?
Does "languishment" hurt the indestructible soul somehow?
Is a languishing soul trapped in time? Does that bother it? Or is the soul always part of the eternal sphere (wheel) , no matter where it is at?
I only brought up souls because right-to-diers are (pretend to be?) so concerned about souls.
Right-to-diers who make the news, like Nancy Cruzan's father and George Felos, talk about releasing the person/soul from their body.
It would likely be kinder to the patients if medical experts who are concerned with severely disabled patients, dealt with them primarily as physical persons and tried to help them in anyway they could and, perhaps, looked to the future with hope for a recovery.
It seems like some of them use the excuse of the soul to kill the body.
One of the underlying arguments of the right-to-diers seems to be
We can't make a "mistake" when we kill someone.""It's all right if we kill patients. It's all right if we err in killing patients. The patients' souls will "live on" or "be reincarnated" anyway....We can't make a mistake in killing them.
Most people seem to agree that Terri is not biologically dead. If she were already dead, Felos and Schiavo would not be "prescribing" starvation to kill her. You don't need to starve a dead body.
True she requires liquid nourishment, but that nourishment is similar to what many folks take as a supplement. My daughter has taken it as a supplement. My mother takes it as a supplement.
Since people in the same condition as Terri are still alive, they probably do not need to have their souls released. Their souls probably belong in their bodies.