Correct. We should remove the rape tag if it's still being applied.
As the rape is still mentioned without the patch, I don't think it's a good idea to remove the tag, considering how much bitching and whining it has already lead to. You could also argue that the first scene with the succubus is a rape of sorts, as she takes what she wants without bothering about consent. Similarly, the scene with the aunt also lacks consent, as the aunt is mind controlled and the MC is sort of forced into it in order to aviod being killed. As such, maybe Mindcontrol should also be a tag?
Now, on that note, are you planing on giving the player the option of making dark choices in the future in regards to the erotic content? Or are the dark choices relegated to non-erotic parts of the game as well as what others do to the MC (as pointed out, the sex the two succubuses wrangles out of the MC through mind controll and blackmail kind of fit the bill for dark choices)? As long as it is given as options (not mandatory), it might even slip past the glaring gaze of F95s morality police...
Regardless, solid beginning, intriguing world building, smooth animation, nice looking cock on the MC and what looks like the beginnings of a interesting character arc and while I do like mommy-incest, I think it refreshing that the mother is killed off early (instead of the father, though maybe we should find out why he isn't around?). You know, dare to be different!
Two notes: A soldier from an empire is an imperial soldier, not an emperial soldier (I guess you can call it what you want, if you did that on purpose, but unless it is explained, it will look like a typo) and when the MC is running down to his burning farmstead, one of the sister calls out for him to stay, but instead of calling his name, she calls the second sister.