The funny thing about this is that you're literally asking them to make the breastplate LESS armored. It's just leather meant to simulate a corset without being one, which again like I said above was an actual historical thing that even men did even with the actual shape of the breastplate itself.
It's for the same reason that men did wear breastplates shaped like corsets historically and why today male armor is usually emphasizing wide shoulders and wide torsos and chests ( wideness in general really ). It's to emphasize femininity or masculinity. But suddenly when it's femininity people act like it's wrong and a problem...
I think you misunderstood my complaint.
I don't care if the boobs are outlined in the armor or if the leather bits are modelled to look like a corset. What I find silly is that the lower tier versions of that armor have two metal boobs sticking out of what is otherwise visibly an all leather outfit.
It looks silly. Two big shiny boobs and no visible metal anywhere else on her body.
Edit: For the record I'd also think it would look silly if the fullplate sets had a phallic looking codpiece sticking out between the legs. This isn't a feminine vs masculine thing.