It's being used, although it's in a beta stage meaning a few selected members of the community have a chance to be a dispatcher, and it's impossible for them to be active on the job all the time, I know myself that I'm really not active on the job.
The job is gonna be more active when it's out of its current state.
It's only available to staff and a select few players who have sucked the right dicks. I imagine that it will be a lot more popular once the applications open up.