Quote Originally Posted by Fawkes View Post
When ARR launched the duty finder wasn't limited to data centers so you could be grouped with people from any server
The difference here is, when ARR launched there were no data centres at all. You just picked a server and that was the only thing separating you from other players.
Duty Finder seems to work the same, limited to the servers available to it. They just separated clusters of servers from each other and called them data centres.