Warren is just bitter because Disney shut his studio down.
I'm pretty sure David Cage preached this before, around the time Indigo Prophecy was released. David Jaffe posted a long counter argument to this on Twitter, which I largely agree with. He clearly wants to work in film, but feels stuck in the games industry for some reason, and is lashing out because no one bought Heavy Rain. We need more people making games who genuinely love games, and less movie-industry rejects whining about them.