Why is that offensive? You think people don't know the difference between the real world and a video game?
I guess I feel that FF's don't need to give "reasonable" representations of people. I haven't seen many fat, old, or bald male protagonists and I'm not bothered by that. Many of the characters in FF have idealized figures, male and female, which i'm fine with. I believe games are the appropriate medium for these things, Final Fantasy in particular.
Final Fantasy is not some magazine with photoshopped images of "real" women that give girls false or misleading expectations of what a womans figure should be(which is a pretty horrible thing) . People are aware that games are just games. I haven't seen any evidence that VG's change people's behavior to real word people.