I wish to answer with the premise that I do not want for you to take this personally and I am only replying in hopes to educate you on the topic, as somebody who was personally molested.
Whether the sexual assault is in the content warnings or not doesn’t change people’s opinion on it, especially because the issues started to arise with the new update. I have personally read the warnings and upon watching the gameplay, I assumed the sexual assault warning was referring to the scene where the MC almost gets assaulted in the arcade. In short, the fact it’s in the warnings keeps it vague, reason why people are allowed to complain about its representation.
Besides, even if you think it doesn't, fiction does affect reality, especially when it comes to topics such as sexual assault. It is a very real thing which affects real people. It is only natural that a sexualized/fetishized/badly handled representation of it is going to leave a bad taste into other people’s mouths.