Here’s how it’s relevant. Now you can grab a co-workers iPhone...grab this file off of it and find out where he’s been going for the past year.
Maybe he likes to visit nursing homes and care for the elderly and doesn’t want people to know. Or maybe he’s cheating on his wife with your wife and doesn’t want you to find out.
Bottomline is this is bad and if Microsoft had done this everyone defending apple right now would be lampooning Microsoft for this.
Bottom line: Even if there’s a legitimate reason for the phone to store this data, there’s no justification for the crap security (basically, mere security-by-obscurity) on it.
At the nursing home?
Not that easy. You still have to get past the pass codes. It's also just been revealed that Android phones and devices send location data directly to Google several times an hour. . . not just keeps it on the phone for the phone's Apps' use, never sending it to Apple, as is the case with the iPhone. Apple does not mine this data for anything personal.