She's run out of treatment options and is still symptomatic to the point that her quality of life is severely diminished.

It wasn't an overnight decision and has been reviewed by multiple medical teams, over 3 and a half years. All stated in the article.

the backlash from this improper use will impede access for the people who really need it

You aren't her or any of the multiple doctors that have evaluated and tried various treatments with her. If you want to get into research and help look for cures for the vast, vast number of illnesses that contribute to people seeking this treatment, please do. Or help advocate for more money being funneled towards healthcare (including for education and training), cuz from what I understand there's not a single country or healthcare system that has adequate resources to help everyone just in terms of the number of people available to provide what treatments we do have