I agree. And I find it suspicious that the writer doesn't give any other information about the 92 year old. Had she been able to enjoy life up until the infection set in, so that one might reasonably expect she would continue to enjoy more life if the infection was fended off? Or was she in the advanced stages of Alzheimer's, recognizing no one, and lying in a bed 24/7, incontinent and unable to feed herself? Big difference IMO.
Is it? So you support the utilitarian calculus of "quality of life"?
For your sake, I pray there won't be someone deciding whether or not your life is really worth living in the near future.
You express an interesting (though hardly original) philosophy regarding life unworthy of life.