Yeah, two or three more rifts would be nice. Even just the one at the rally point would be nice. There is that one statue behind that little voidwoken dragon that looks like it could become a waypoint.

On a related note, it can be hard to remember which rift goes where to a degree. I don't think I made a mistake, but I always hesitated about which shrine went where. IMO, it'd be a lot better if the rift travel screen opened up the world map and you clicked on the swirlies instead of just a text list. Not a big deal, but would feel more polished and intuitive.