I agree that the author isn't totally rigorous in his methodology, which I understand is frustrating, but I think you're missing the bigger point he's trying to

I agree that the author isn't totally rigorous in his methodology, which I understand is frustrating, but I think you're missing the bigger point he's trying to make. As I interpreted it, the article is mostly about self-improvement and the fact that even at 95%, there's still a lot of room for optimization between 95 and 99. He's saying, "hey, even this competitive Overwatch streamer makes game-losing mistakes, but it's very easy to improve on these things, if you have the right mindset". In other words, instead of focusing on your rank, you should be focusing on the low-hanging fruit, no matter where you land on the spectrum of talent.