Would made teleporters too easy.
You could have 5 different teleporters in 5 different locations (That could be very far appart), and you would only need 1 teleporter to link to the other five without complications (As long as you remember the frequencies)
Using the actual model you either need to build 5 teleporters for those five locations, or keep 5 freq transmiter with the different locations somewhere safe and nearby the teleporter. (And if you happen to lose one of those freq transmitter you are pretty much f***ed)
(Random offtopic idea/note: Make a room with a megaman Pre last boss motiv where you had to teleport and fight the master robots again before fighting sigma/willy)