Girl meant prior to swapping to legion expansion with Chromie.
If one tries the broken shore opening questline for access to Legion zones before finishing BFA opening quest [if one accepted and cleared that first BFA quest], they won't see NPCs to continue the legion quest due to the area being phased for BFA opening quest.
Also, one doesn't need Chromie to get to Legion zones or get artifact, though Chromie (plus at least one artifact gotten, and level 15+) is needed to queue for random legion dungeons.