which year are you talking about the year where he got second at an international lan plus further than envy at champs or the year where chamber was meta??
im not sure what any of that has to do with how good he was at jett, the point is that his literal best year of competition was on jett and the only tournament where yay and derke were both present that year derke was the better player statistically on jett. i'm not saying yay is bad he clearly is the best player in the world at the moment but it is ridiculous to suggest derke was not a good jett