Oh I definitely don't think it was a last minute decision, it just feels really weird when they go "So guys she WANTS to be shown looking like a character in the middle of a mindbreak hentai! She could be a proper warrior queen but it's about her pride you see!!!"
And if her nudity was presented closer to Penth and Nitocris where it feels less fanservicey and more just a part of her I'd be less bothered, but everything from how she never gets proper clothes, the underwear that's riding into her crotch and ass and the loving display of the goods in her FA just leave me very "hmmm....". I've had some problems with this artist's style in the seraph manga but CCC is horny on principle so I found it more forgiveable (his anatomy is still wack and the character model consistency is non existent)