some trans people want to see hot and sexy trans people in their fiction. if you don't like it that's fine but don't claim to speak for all of us.
there are plenty of trans people who find it affirming to see a character who reflects them, and yes that can include their genitals. personally I love to see a pre-op trans man still treated as a man in the bedroom. if that's not you that's okay, but it doesn't mean that it's automatically bad or wrong to include.
regardless, the current build of the game doesn't place emphasis on ikki's genitalia in the bedroom.