It's unusual these days for Tesla to put in a supercharger at the same site as a service center. It tended to create too much conflict between the service center needing to use it to charge customer vehicles and owners wanting to use it at the same time. That's my understanding of the one in Cinci at the service center. It used to be listed on the in car NAV back in 2016-2017 when I took delivery of my MS90D, but was later removed from the in-car NAV after the two other supercharger locations were opened (Marburg Ave and Dent). I believe similar situation now with the service center in Nashville, TN that may have also been pulled from the in-car NAV.
Maybe they are viewing this one differently if it will not be used to deliver customer vehicles, so less need for the Service Center to use it. Curious to see how this plays out.