...And people are complaining that a game where you walk around and kill people is going too far?
It's not the killing. Killing stuff is just fine, it's how you approach it. Shooting things is what every FPS is all about. Killing hundreds of uniformed soldiers is just fine. Uniformed soldiers aren't real people, it's okay to shoot
them. And it's okay to nuke England or blow up a star system in a 4X game, because you never see the millions or billions of people who die. They're statistics, not real people. And while virtually every roguelike features mass murder as a method of keeping score and character advancement, this one here goes out of its way to personify the designated victims.
The suburb dwellers of this game aren't any more likely to die than the gnomish miners of Nethack, but the game actually bothers to point out that they are only your enemies because you broke into their house at night. And they do human things, like watch television. You get things like police officers tossed your way, subtle reminders that maybe you should be having some moral qualms about what you are doing here. Killing people is often the default method of interacting with the environment in games, but very rarely are the people being killed
treated as people.