The duty finder removed a lot of the game's forced interaction. Sadly this leads to players being able to remain insular and not need to community build to enjoy the game.

XI had a robust community due to all the forced interaction. It's the stuff people decry that made it bring people together.

Look at something like experience loss. Terrible if you ask anyone, but mechanically it made players aware of their surroundings and at worst have a white mage friend on call to recoup your losses. Encouraging team play.