This is not true. Games that are not NSFW, adult content, or have any sexual content at all have already been banned. Specifically, games that contain the prohibited content. A man coming to terms with having been sexually assaulted, not described or included in the game itself, was banned because it contained non-consensual content.
So claim that the context matters all you want, but it really doesn't. Itch doesn't have the time, money, or people to review anything that lists any prohibited content to make sure the context is not glorifying. Payment processors don't give a damn how the game frames prohibited content.