The nature of open source is that people work on what they want to work on. People work on async because it interests them. But to the same level many people in

The nature of open source is that people work on what they want to work on. People work on async because it interests them. But to the same level many people in the lang and libs team don't know async that well. You may perceive it that everyone works only on async but this is just not true.