Whilst there's legitimacy to finding Quiet's design offensive, there's a rather disturbing trend of crusading against things, trying to force all mediums to adhere to some social, moral and cultural standard.
Works like MGS's Quiet and Waifu Simulator 69 are allowed to exist. It's pandering rubbish, but they're allowed to exist. In the same way that we have Bond girls, erotic novels, Cosmopolitan magazine etc, we also have foreign cinema, literature and indie / artistic games on opposite ends of the spectrum.
MGS here in Australia is rated R-18+. This is the same age that you can legally smoke, drink, go to a strip club or even a brothel. Naturally, equating MGS to a brothel is a little excessive, but the point I'm getting across is, games and creators are allowed to create titillating rubbish.