IDK - As the Station is in deep space - nowhere near a planet; why would you put a transporter control there as the only time you need to stand there is when your ship is beaming you back. All it would do is make a recipe for disaster if someone wanted to say - commit suicide.Sure, but what is with the people, e.g. deep space station personnel , to be beamed from the station?
And remember to beam you back, the transporter needs a communicator signal of some sort; and non-starfleet freighter crewmen may not have one - but the two person pad probably does, meaning if you stand on there and don't have a communicator, your ship can still beam you back.

