I think the unspoken truth but also the thing both chess.com and Magnus are hinting at is that Niemann has cheated a lot more than he lets on, perhaps his entire stream was built on cheating, who knows. But chess.com can't just start sharing information like that, and they are walking a fine line just with their public statement where they affirmatively assert that Niemann is underplaying the reality of his cheating. Magnus probably has insider information from chess.com but is bound by NDA and this is also why he's now challenging Niemann to give him permission to speak on the matter.