I can see the merit in both of these arguments, but I lean towards slightly disagreeing with you on that. Doctors are people too and wording like that has caused problems in the past. (Off the top of my head I think about mental health issues simply being labeled as insanity) I also would hope that a new definition of aging would not cause doctors to dismiss problems, but the fact that I could easily see that happening is more than enough reason to stay away from it, at least for me.