Nope. Nada.
Having worked with the terminally ill and disabled, I would not go there. There is no way for an observer to comprehend the mental state of those facing death.
I find it reprehensible for anyone to attempt to judge this woman. I would not chose euthanasia because of my Catholic background. The theology of redemptive suffering is true. Everyone will met death on their own terms because one does not have the option to do otherwise.
What I object to most in this article is the judgmental, self-righteous tone.
Correct, and even more so when the brain itself is damaged as a result of the disease. Cognitive functions and consciousness itself may change from day to day as the tumor progresses. The increasingly severe convulsions in this young woman most likely resulted in even more neurological damage.
I agree with the rest of your comment as well, although if faced with severe, intractable, untreatable, unrelenting pain, I probably would not be capable of enduring it until the natural end.