What the doctor appears to be saying is that this was a quality of life case in which the quality of the life didn't come up to his subjective standards. That's all.
After reading this 'doctor's' submission, I have, without examining him, determined that he exhibits no cortical function. Since his quality of life cannot be expected to improve, he should be locked in a room sans food and water until such time all natural bodily functions cease. Since some moveable 'quality of life' standard seems to be what they desire to use, it can be manipulated to include anyone that they wish offed for being a 'useless eater'. Oh, joy. And its all 'legal'. More joy.