This AVN is not the strongest candidate for 'choices matter'. You can avoid lewds with some of girls and avoid a scene of dialogue or two.
This is very common for AVNs.
Personally I don't think its too much to ask for choices to matter in more than just lewds but it would increase the complexity of the programming and story, probably to the point that Dev time will jump up immensely.
For me Crimson High is great because of the characters and the story but also because it has an extremely fast Dev time and the Dev is very reliable.
So I would vote against that change.