Here’s a clearer image of this cell, showing where your approved Wayspot is in the red circle, and Light and Number one is in the blue circle.
As you can see, they are in the same L17 S2 cell, but yours is in the northeast corner, and Light and Number one is in the southwest. While it can’t be used as a stop/gym, it could get used as a Power Spot in the future, as unused Wayspots do get used as those from time to time.