I agree with 99% of your reply. But obviously I'm in the minority with the renaming of the girls. I really like that as a feature of any VN - one quick example, in the "Evil Asshole" playthrough I named Jack, "Adolf" (for obvious reasons - although I didn't appreciate how evil it would get!) and it would have been good to be able to rename the girls with a consistent naming convention. But your game so your choices, I respect that.
Removing the renaming option wasn't an easy decision but I still think that was a good one. The mistake was to offer the renaming option in the first place. I do understand, however, that the player may want some degrees of customisation to improve his immersion. As with everything, that's a thin line to walk on.