That's a good question. Given that Everytown refused to comment now, to me that either points to them valuing their relationship with Snapchat over the perceived benefit from speaking out, or this not being a very accurate portrayal of the events, and they know enough to know that it's not clear that Snapchat was in the wrong and they don't want to be embroiled in the circus that would result.
Everytown did not refuse to comment; they did not respond to multiple requests for comment. There is a huge difference between the two.
Several years ago, I became embroiled in a local controversy. A journalist reached out to me via Facebook messages. As she was not one of my friends, the message went into the abyss. When the story hit her publication it contained the same "Greg Hluska did not respond to a request for comment."