DotM first aired when I was 15. During the air ducts scene, I remember being disappointed Helen was wearing a modesty panel under her uniform.
Oh, you must mean in the bodice. Yeah. At first I thought you were refering to this part of her outfit, where a little modesty is probably for the best:
According to the anecdotes in INSIDE STAR TREK, this level of hemline was entirely Gene Roddenberry's doing, and William Ware Theiss was (I think rightly) aghast.