You said (essentially)... "That won't work. Her back has to be to us, because there's no other way to draw it, and you can't show anything that way."
Joe said (essentially)... "That may cover everything you called for, but it's a boring view. If you show her with her back to us, though, you can still show everything you wanted, by doing it this way, and it might work better."
Those are two completely different messages, with absolutely nothing in common except the position of the figure. And I'm kind of surprised you couldn't see that on your own.
As for the rest... I am absolutely using (or perhaps abusing ) you as a teacher, and not treating you like an editor I'm working for. Rest assured, if I were working for you or another editor, the responses would be, "Yes, Sir. If that's the way you want it, that's the way it'll be".
However... I don't expect to ever be in that situation, myself. I'm not interested in telling stories about other people's characters, not for the big two or anybody else. And if I submit my own stories to a publisher (rather than self-publishing, which is more likely) it will almost certainly be as a complete package. So the only way I can see that I'll be working with an editor (outside of here at least) is if I hire him to assist me.
In which case, when I'm writing the check, he'll want to be prepared to tell me why something should be the way he says it should be, if he wants me to go along with it. If he can't tell me why, then, as far as I'm concerned, he's of very limited use to me. As far as deadlines go, if the editor is working for me and I disagree with him, then I won't bother arguing about it - I'll just excercise my right as the guy in charge of the story and do it my way (which I could probably do here, too, but I wouldn't learn as much as I do arguing with you ).