Hmm, I see your concern. I'm pretty big on privacy myself, so I feel I should be able to answer this in a satisfying way.
Most importantly, this always requires the user's concent. On Android you still need the same location permissions as for normal GPS location positioning. Hence, as a user you're always free to reject location permissions same as before.
I have to admit, this tech can also be used for evil purposes. For now, not all phones support collecting raw measurements - either hardware or software support is lacking, but in the future if some entity could force you to have your location verified, then having you cannot lie about it anymore.
Most importantly, this always requires the user's concent. On Android you still need the same location permissions as for normal GPS location positioning. Hence, as a user you're always free to reject location permissions same as before.
I have to admit, this tech can also be used for evil purposes. For now, not all phones support collecting raw measurements - either hardware or software support is lacking, but in the future if some entity could force you to have your location verified, then having you cannot lie about it anymore.