We might be nit-picking definitions, but I don't think that's a fair characterization. From the perspective of the user programming with async, when you gather

We might be nit-picking definitions, but I don't think that's a fair characterization. From the perspective of the user programming with async, when you gather the results of two coroutines you don't care at all the order used for each stack frame. The mental model is one of concurrent operations which might suspend at yield points.