So as I thought (and wrote) you weren't doing it... Great.
Maybe, and I mean, MAYBE, try to convey your suggestions in a way that doesn't look like a demand.
Ok, now to explain why Sandra and Shizuka are NOT the same.
Sandra is in the game to BE the Femdom escape for those that like that content. Even in that role, Mommy Sandra is a very soft Dom. No matter, if you don't like FemDom, you can say NO to her content. Done. Solved.
Shizuka, is one of the unavoidable girls, you'll never be able to say No to Shizuka, all you can do is choose her kinks. This only happens with 7 ladies.
All the rest of the girls, to get rid of their kinks, you get rid of them. This was done to reduce the number of paths that need to be rendered for each scene.
What you are asking, a Romantic path for Sandra, would defeat the exact purpose of having someone specifically for the role of FemDom. That's why I said that you are asking for Custom Content.
Can you understand now? Need more explaining?
Peace