Even if he was, I can’t imagine anything worse than to be trapped in a nonfunctioning body for 12 years. But the muscle atrophy and contractures from not moving for so long would take years to reverse if at all..... I am suspicious as well, but miracles do occur. However, they are not common, that is why they are called miracles. Given the choice of spending 12 years like that or discontinuing care and going home, I would chose no aggressive care. I would rather be home with my Lord than have my family striving to keep me here in an intolerable state. An infection or aspiration is usually the way these things end.
If you are skeptical of this story, why did you not look it up?
https://www.youtube.com/watch?v=GBFntsxK-vc