Ok, first off. If you want D&D Next to be written at the level of Young Adult Fiction, you would be okay with graphic representations of rape, sex, substance abuse, and a variety of other elements because I can guarantee you that a 30 second perusal of your local library's Young Adult Fiction (13 yo to 20 ish) section will find novels with every one of those.
The days of Nancy Drew and the Hardy Boys are a LONG way behind us. Let's not forget that The Hunger Games is a YA fiction novel about children being forced to murder other children for the entertainment of the masses. D&D has NEVER been written to this level. The old World of Darkness books would be considered YA fiction now.
You know, you are right, and those facts many of us here missed in this discussion. So it is even more silly for D&D to shy away from such elements completely.