So you want everyone to sit down quietly, emotionless and not caring about anything? If you can't handle such emotions you shouldn't watch gaming streams. There is nothing wrong with s1mple's reaction.
The thing that most people, that don't share his passion, don't see is that he wasn't even that angry. He was really devastated and the punch on the desk just comes from that, it has absolutely nothing to do with being toxic. People with passion for the game would understand him, but you obviously do not.