Isn't that part of the discussion? That Valve can just arbitrarily reject a game. Before the payment processors stepped in for example, which was also the time Valve "banned" Horses, Steam had games that had the four-letter r word in their description and Valve didn't care despite being contacted by Collective Shout. One could argue they're lying, but as someone who's worked with most major publishers, I can believe them, because Valve is almost impossible to reach. In my experience, and based on what I've been hearing, most of the time they simply don't reply to press requests. Instead they do these publicity stunts where Gabe Newell will occasionally reply to random email messages from people online, knowing the reply will be posted to social media, or he'll do an interview with a nobody on YouTube.