The robots replaced the frontline laborers, yes. But someone now needs to maintain, build, and engineer new robots. Hence they said the laborer's job was replaced with one that requires fewer people at a higher skill (and probably pay) level. Or at least that's what I picked out from their comment.
Please note that while the robot is replacing local jobs, the people engineering, building, and maintaining robots could be ln the other side of the plant also. In a world that's seen a huge amount of consolidation we are likely to see further consolidation.
