I think you're reading too far into it. That may be the effect, but the intention at the surface level appears solid and straightforward. When it was revealed that Nintendo would be publishing B3, there were people who were worried the sexiness would be toned down and the game would lose the franchise's signature prurience; but also, there were people who always liked the games in spite of the over-the-top sex-appeal and/or were introduced to the character via Smash Bros. Plus, despite getting more lenient with its 3rd-party stuff in the Switch years, Nintendo still very much has its family-friendly image to stick to. I think this was honestly just a relatively simple-to-implement way of appealing to both crowds.
(Full disclosure: while I work for Nintendo, but absolutely nothing to do with, nor any knowledge at all of, this project, which I think was handled mostly by Platinum anyway? Again, no idea. Also, I'm not against criticizing Nintendo or reflexively defending them, nor Bayonetta as a franchise. This is just my neutral 3rd-party read of the feature, which I think is a good one.)
(Full disclosure: while I work for Nintendo, but absolutely nothing to do with, nor any knowledge at all of, this project, which I think was handled mostly by Platinum anyway? Again, no idea. Also, I'm not against criticizing Nintendo or reflexively defending them, nor Bayonetta as a franchise. This is just my neutral 3rd-party read of the feature, which I think is a good one.)