That system is nothing compared to the geolocation databases curated by Apple and Google, with GPS sensors combined with Wi-Fi wardriving, IMEI tracking, cell tower handoffs, and the rest of the insane amount of telemetry they collect collect in real time. And that’s before even considering BLE and the Find My network. Imagine the “God mode” dashboards they could have in Cupertino (or more likely, in Mountain View).
Imagine a Google Maps / Google Earth where you can see everyone’s location and identity in real time, with tagging/targeting/following capabilities and quick links to thorough personal profiles.