Niantic is being a little vague here but it sounds more like Pokemon Go's location engine, refined from 10+ years of activity, is being used but not actual user data, like how Foursquare became the underlying location engine for Uber, AirBnB, etc.
Brian PJ Cronin
Pokémon Go location data captured by players is not being used to train military drones, Niantic Spatial has insisted. #IGNSummerOfGaming https://bit.ly/4om1jcm