If you read the entire thread, you’ll see that this product feedback is not something simple they just haven’t found time for. It is something deeply rooted in the way Asana was designed years ago. We know this is discussed often, and we see a few hints here and there that subtasks are slowly becoming part of projects. To be fair, a good chunk of users actually do not want this behaviour. And adding a toggle/option is usually not a solution Asana is going for.
this is my personal opinion, I don’t work for Asana