To be fair, Chess.com said that they had identified 24 other GMs who they believed had cheated (who they declined to name). His cheating may have been more normal than is comfortable. It's entirely possible Carlsen was on that list; we just don't know.

Niemann seems like a jerk, but he's also just a kid. He was 19 at the time of the controversy. I've sure grown a lot since I was 19.