Yes, you’ve successfully summarized the situation this woman may have faced. She chose to let the fear of her spouse make her decision for her. Did she make the right decision? I don’t think so. She’s still dead. At least if she was murdered for choosing to get vaccinated it could be said that she did everything she could to keep herself alive. Maybe that’s a meaningless distinction and maybe it isn’t. I think that comes down to the way you view personal responsibility. Still, whether coerced or not her decision lead to her death and that’s worth pointing out no matter how unfortunate you find the circumstances that lead up to it.
You are of course free to disagree with that assessment but I am firmly of the belief that getting vaccinated is always better than not getting vaccinated unless you have a valid medical reason to avoid vaccination.