Oneechanbara was a lot more risqué than any of the games you mentioned when it comes to costume and character design, with the exception of stellar blade, which is easily one of the best action, semi open world games released in the last ten years. It's also the only game to have 100% realistic physics for all aspects of a a woman's body based on the build the character has. Only her face was tweaked so she would have the broadest appeal to a worldwide market. The rest is just a woman being scanned into a game at a 1:1 representation.
EVE otherwise has an amalgamation of the scans of about 8 women of varying proportions. It was also the most controversial game of the last 5 years easily because it's "sexist" or something at the time and the main complaint was that it was gooner bait but the game isn't sexual in any way, neither is the character. If what she wears makes her look as such, it's the viewer that sexualises her, not the game because she also doesn't do anything to play things up. Simply because she was made conventionally attractive in the current media climate, it was "bad". Anyone that actually played through it ended up loving it and thinking people were just full of it. Her appearance in astrobot was well received too.
Bayonetta is kinda silly and almost like a parody of drag queen style but done by a woman, it's meant to be over the top and not much else when it comes to design of the character, almost like a Brazilian carnival, she was, if anything, the one character that it was okay for journos/twitter goblins to consider "sexy". She's also quite far from conventionally attractive by design, very tall with the most exaggerated walk I have ever seen and again, drag queen like dramatic movements. Bayonetta and Eve would be an example of chasing two different audiences. So I genuinely wouldn't consider Bayonetta to be a part of the whole "controversial, attractive female protagonist - therefore contoversial" conversation. I get what you were going for but I really haven't heard any controversy outside the voice actor fiasco.
Full metal schoolgirl does look kind fun but I'm gonna wait on a sale for that one as I've heard it's got rogue like mechanics and I worry it won't be a fun as the last chanbara game.
Oneechanbara is a parody of gyaru girl in a bikini with a prominent lower back tattoo and is a reference to how some women style themselves back during the 2000's, there's quite a few reasons why they wouldn't bring it back all willy nilly as it refers to the social perception of certain women in Japan, in a negative way, to put it simply. There's a good few reasons they wouldn't make one now. They're welcome to prove me wrong any day though.
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