This, exactly. Disney princesses have (largely) always been very chaste in their attire, with very little skin showing, and I don't think that the addition of a bare shoulder (gasp!) really changes that. Even Jasmine and Ariel, who wear less clothing just by the nature of their characters, aren't sexed up at all. All of these new looks still leave most of the princesses dressed far more conservatively than most of the populace -- you'd see more skin just about anywhere. You can't even see their ankles for Pete's sake. Now this, I agree with. That Merida was not a fan of the glam was one of the central components of her character. I don't think it's a coincidence that she began to rip through her formal gown as she started showing the guys what was what with the bow and arrow in the movie -- to the contrary, it was highly symbolic of her wanting to shed the formality of the whole process. With that in mind, a "traditional" princess gown doesn't really befit her. Certainly doesn't look skanky, though.