Despite this game being one that I have gave up on twice (once at release and again on this update (both times getting stuck in chapter 1/2) I still think reworking full renders would not be worth it. Even if you change the dick from comically to reasonably large nothing would change other than a slight change in model positioning during sex
Like i said I have bounced off this game twice, the first time (at release) I quit because it was clear how the dev wrote/set up both regular and sex scenes which going by recent posts is still the case, and despite many reviews raving about the story/characters I didnt want to push through the (comparatively?) rough early chapters to just end up reading could be a basic harem game with extra steps. (MC is god at sex, every girl wants them, moved to the side after conquest etc) you could change his powers from incubus to slime and the only thing that would change is some text lol)
I have a hard time beveling it would be worth their time but regaurdless the dev should be praised fot the amount of stuff they get out even if I am not a personally a fan