the way that the game is so ambiguous can inspire so much creativity and less limitations on whats canon and not canon, but one of the cons of this was how the ambiguous and the nature of this game being largely up for interpretation messes up so many things when it comes to handling and portraying korekiyo's situation & trauma. at least in my opinion.

the game paints an illusion that the situation korekiyo in his sister was ambiguous on whether or not that korekiyo was in a consensual relationship with his sister, to the point of influencing many fans' treatment and view towards him. the game preferred to use korekiyo's situation with his sister and unhealthy views on love as a "huge shock factor", to demonize him more, while not really addressing to the fact that korekiyo was abused. i'd go far to say that korekiyo's sister older age, control and heavy influence on him was never meant to be seen as it alluding to her not being a victim of the dynamic, despite those things being the main factors in the grooming process. especially when its explained that kodaka wanted korekiyo's "character moments be about forbidden love" which downplays korekiyo's situation and hints towards abuse due to his sister's control (and manipulation, hinted by his tulpa that's based on his sister) of him.

how korekiyo's story is played out gives such mixed signals and is a mess. it was such a poor attempt at making his incest situation ''ambiguous'' for the sake of tying the whole ending of the game together and adding to the thoughts being expressed on lies and fiction.