This is the second thread I've seen where people complain about horror elements in a game with horror themes. Ryona/guro seems like it makes for a good filter, like ugly bastard.
The key issue here generally falls upon the fact that mixing gore and porn is, for most people, pretty distasteful where having one or the other simply isn't seen nearly as poorly, especially when in certain cases much of the gore itself is being fetishized, or ends up taking the place of what people expect to be an erotic animation, only to get the bait and switch of gore porn. Now, while yes thematically it makes sense here, more sense arguably than the porny elements, its not exactly like the game itself has really painted itself out to be a game that would feature gore for the vast majority of its development.
While I haven't exactly seen any of the gore scenes featured here yet, the inclusion doesn't exactly turn me away from the game as it IS a pretty fantastic game as far as those in the H department go, and the addition of a filter as well as warnings as to when said gore is about to play make this game far more agreeable to me than one that just lets it sneak up on you. That being said, I definitely understand those that feel somewhat insecure, or reviled when even playing a porn game that features those elements, hell, it can be bad enough when AAA games really start diving into the more brutal stuff, but I suppose years of Mortal Kombat and Resident Evil have pretty much desensitized me at this point. Still, when its put into a porn game, its a HUGE turn off for me as a whole, and when not properly accounted for, makes me feel like I have to walk on eggshells at times just to avoid the content, which while this game it shouldn't be overly difficult to do so given the way you can prematurely end animations, the big "fatality" warning, and the general fact that you somewhat have to let H animations happen to you to see them in the first place, I'd simply feel much better without them being included.
But, if the game is good enough, and has some content porn wise, or gameplay wise that can make me overlook it in in the porn game, I can generally live with it. I've made it through far worse at least, though, I still haven't taken the dive to see just how brutal the gore-y scenes in this game are, though I somewhat doubt they are as bad as others out there... but at the same time given the quality of animations in the game in general, I could imagine them being pretty painful to watch as well if given the same level of quality as the rest of the games animations.