With all due respect neither of these two reviews actually "get" the film. Superficial view at best.
The violence is there but it is stylized..not realistic at all...as are the scenes depicting sexuality *apart from the "rape" scene --and as we know the perp gets his just desserts).
As I implied in my comment, the recommendation not to see the movie is for Christians. If you're not a Christian, you are under no obligation to honor God in your movie-watching choices.