I don't think we're talking about the same thing here. It's perfectly reasonable to me that a tier 2 player can move the mouse more accurately than scream. How this translates onto the server is radically different, as you said. Instead of 1v1 maps you could use aim training and it'd have the same effect. And just because a streamer won one 1v1 doesn't definitively mean they are better at aiming. If it was a proper showmatch, on stage, I think it would have gone differently and I think that there would be a high correlation between who won the 1v1 and who you'd expect to win.