Yeah - I think that is meant to state the difference between "we're not teaching you to do chest compression AND mouth-to-mouth, we're just teaching you to do the chest compressions"
Having a mouth-to-mouth station would be impossible to keep clean in a public setting. I'm not a germaphobe, but now that I think about it, I don't know if I would want to touch that dummy at all with it being right outside of the men's room.