Aesthetic complaints seem to be largely nostalgia/conservatism based - anything new and functional is called ugly at first because they aren't used to it. See

Aesthetic complaints seem to be largely nostalgia/conservatism based - anything new and functional is called ugly at first because they aren't used to it. See how the Eiffle Tower and trains were called ugly and now tearing it down would be unthinkable and old steam engines are considered picturesque.