I agree with what he's saying form the artist's perspective. But I think that many gamers themselves feel some pressure to have answers to these questions and we often look to the content creators for them.
I think the thing to take away from it is that gamers should stop accepting that pressure. Much like Tarantino, we should feel willing to say no when people press us for a response to real-life violence, as though we, the consumers, are responsible, or worse yet, potentially dangerous. If I played Doom in the 90s and early 2000s, how is it relevant to me what a couple of unstable young men in Colorado do? "You both play Doom, obviously there's a link!" Is it also a link if they watch CNN? Is it a link if they had both read The Sound and the Fury? Obviously, that is preposterous, and we should not even justify it with an answer. I feel no compunction for disregarding the questioning of my right to consume entertainment, and creator's right to free expression in their art. We must free ourselves from reacting to this, or else it will never go away. Shut it down, don't keep feeding the flames by arguing, and don't justify absurd questions with explanations. The media has our answer, has had it. "No".
Fantastic satire. People really fail to understand correlation vs. causation, and even though I suspect the media does, they still abuse the confusion for fear and ratings, and to get their way. It reminds me a bit of dihydrogen monoxide.