This will be one of the last times the old GT8-100C/2S TramTrains are used. They can be driven from both ends, and such are used for shuttle services like this, where normal turning loops are not available. Starting next year, the remaining C/2S services will instead be served by the new class 492 TramTrains.
It always kind of surprises me when trams aren’t double ended. I suppose if you design your infrastructure appropriately it’s not a problem, but it feels like being able to drive from both ends gives the train/vehicle more flexibility and means changing directions only takes about as long as it takes for the driver to walk from one end to the other, and means you don’t need to build the space for a wye or loop or whatever.