Duty Finder is cross server.

No one runs tower any more which is your problem.

It doesn't drop anything but glamour items now, unless they update the Archmagus quest to drop relevant level 60 items in 3.1 it will remain unpopular content besides the few running it for the first time, those after glamour and those after cards/minions who didn't get them when running it to death before 3.0 hit.