Comment by Terretta

The Apple deck linked elsewhere in this thread suggests the developer's goal generally isn't "DNS resolution", the dev's goal is usually establishing a connection to a host/server/endpoint to start doing something.

So, usually devs should use the Java or Apple or whatever higher level OS API gets you connected the fastest, and that API is free to implement the connection however most quickly gets to the point of able to return data to the user (app or end user).

The API that returns a list of addresses is stuck doing that, instead of being able to parallize the entire "get connected" data flow.