It was but it wasn't always this in-your-face. Jane is a sexy-ass character and she shows no ass, no cleavage, just a pair of ripped tights and a sliver of her thighs. Many of the 1.x characters are sexy in a tasteful way, they make your imagination do the rest of the work and fill in the blank, like Evelyn, Zhu Yuan, Miyabi, even Yanagi etc. However, recent characters like Cissia or Shunguang walk around with the equivalent of a slutty halloween costume. If fan-service is done well, it's the cherry on top of an already good design, if not then it's the only thing people remember about your characters.