It's another "I'm scared of google tracking this thing but can't give a reason why" episode. It's bad if law enforcement has your location data because...? Are you a criminal?
I'm on the lax and forgiving end of the privacy debate but even I find this statement breathtaking.
Would you be as cavalier about giving up other similar protections? i.e. unwarranted search, self-incrimination etc. They can all be attacked with similar "if you've done nothing wrong..." arguments.