Wayspot in otherwise empty S17 cell not appearing as Pokéstop?

I found a statue that wasn’t in PoGo and seemed to be far away enough from other gyms/stops, so I wanted to submit it. However, when I do so, it shows up as a “Wayspot used in other Niantic games.” I cross-referenced with pogomap and the S17 cell definitely does not have any other Wayspot. Does anyone know why this the case, and if there’s any way to get the statue in the game? TIA