I think the amount of inmorality in games is nowadays so vast that it ends up being a bit of a trivial matter, to the point that it's not about inmoral games anymore. It's about sensitive players. And there is where Super Columbine RPG makes his point. There are bloddier games out there, like Carmageddon, but Super Columbine RPG hits the guts in the same way that WW II games. You don't need to be a kid going to school to be affeted by Super Columbine RPG, neither you need to be jewish to feel bad for being able to play the nazis in a WW II game.
Me, I'm the kind of player who loves to choose the evil path when a game lets me choose. I've played terrorists, sinisters wizards, crazy killer drivers, evil gods, selfish bastards, thiefs, arsonists, and, on a particular note, a lone wanderer with the objective of killing every single form of life in Capital Wasteland (sadly, the Xbox doen't allow mods in Fallout 3, so kids and quest related characters are inmortal, and animals and bandits keep respawning, but you get the idea) and my Sims 3 obsesive compulsive writer of novels, who killed 16 people and then wrote a masterpiece called "How I killed 16 and why you will never be able to prove it" -- then he found the true love of his life, and now he has two daughters and hasn't had any murdering need since he's a father.
And I'ven ever felt bad for it. Heck, my childhood heroes are The Joker and Cobra Commader!
But I did feel bad for Super Columbine RPG. Because I followed the media when it happened and I felt terrified. Because I saw Bowling for Columbine, and Elephant. Because I though a lot about that. And that's the point. I don't give a damn about a Sim, an NPC or a Counter-terrorist controlled by a 12 years old kid, or the old ladies I trampled over in Carmaggedon. It's all about the game. It's mostly about you. Because, would I feel bad for that game if nothing had happened in real life? My guts say "Of course you would feel bad for that anyway", but then again, that's the point. I'll never know because it's done already and I think that way because I have an informed opinion about it.
This reminds me of this article: http://www.escapistmagazine.com/news/view/94114-Molyneux-Says-Americans-Find-it-Harder-to-Be-Evil
So, in the end, I think it's about how sensitive are you with certain subjects, that's all. But most of all, I think that if games are done with "moral", then political correctness appears. And then we're done and everything is blank and boring.