It is about ifs, though. Even the article mentions that sometimes people come out of comas and you can't really predict when that'll happen. If I would have come out of the coma and they didn't bother to keep me alive because they wanted my liver I most definitely died because of being an organ donor. Honestly, if something like this were passed in the US I'd probably go turn in my license and opt out. I doubt I'd be the only one.