Guess you missed the part where this "perfectly physically healthy person" was as the article states "She also had physical difficulties and was almost entirely bedridden."
She was bed ridden with severe mental problems and even with intense trauma therapy there was only temporarily partially successful.
I'm all for keeping people from commiting suicide, very much so. But for someone who is clearly suffering both physically and mentally and whom the doctors say cannot be helped in any significant way, I'm perfectly fine with that person being allowed to terminate their life.