No he is not. If you say that he is best aimer I would probably agree. His reaction time probably fastest out of all the pro rn. And his aim is crisp. But that is only one part of being good. Huge part no one argue. But you need more than that - game sense and teamplay just as much important might be even more important. And on both of this stats Tenz is far from best.
Edit: f**ck autocorrect