If Musk were guilty, would he ask for all of the documents to be released? At the very least, he knows that there's no internal document that incriminates him. He has been a number of times vocally in favor of what Musk is doing, including the downsizing of the company he built. It's just speculation that Jack probably feels like he got screwed by some people on his team. And he's happy with Musk getting the revenge that it was impractical for him to get.