"The fact that she lingered for 13 days does a lot to belittle their argument that it is a peaceful way to naturally die."
If you think dying over 13 days is bad, try living for 15 years in a hospital bed without the ability to interact with your loved ones.
Oh, I thought she was a vegetable and didn't feel. < /sarcasm>
If she was a vegetable as you believe then it is not a big deal. At least her life brought pleasure to her real family. But they don't matter because Michael loved and cared for her so well.
You have absolutely zero understanding of what it would be like for those 15 years since you haven't experienced it. So stop preening and lecturing like you know what you're talking about. You might THINK you wouldn't want to live that way; most leftists, being natural cowards, are downright afraid of something like that so it's understandable. But you should know that not everyone in the world is a leftist or a coward and could perservere through it happening either to them or a loved one. Some people have more determination and will than cowardly leftists.