This was just like mine, a screen door spring, I have never seen so much poor workmanship. This is a shame, I would fire the person who did this on the spot.

I understand your concern, however in that application how would one manage the slack of the wires when opening and closing the slide? It seems that tension has to be maintained somehow. On the lower level slides there are different methods for routing the wires but the upper level slides have a smooth bottom.