I don't think people are confusing the two, I think they are saying that if she hadn't made her choices, it wouldn't have happened in the first place.
But that is completely irrelevant if the care is substandard. In the same way that you can choose to be in a car, and if it crashes and you need care, the care has to be competent.
If she received competent care, then the disability was not down to that care, but the situation, at which point her choices are relevant. If the care was incompetent then what happened to land her in need of it is not relevant. All that is relevant is the hospital's duty to provide competent care. That's a factual statement, and your opinion on it is as irrelevant as the reasons someone ended up in hospital if the care was substandard. It's the logical position, and the legal one in direct consequence.
As to your views on what happened to her, or didn't - you have a view on this woman's life, personality and legal position (based solely and completely on a Mail story) which you are vehemently asserting as factual, while dismissing her right to her own views on her own life? With what I can only assume is rather greater information than you possess? Seriously?