I agree with this original post that this new "feature" is severely problematic. Think of the privacy implications. I know, you didn't think of that...but if you did think of privacy implications, you would be a bit more concerned.
People are likely to want this feature because 1) they spent $1,000 on a phone and 2) they have all their personal info on said phone, which they don't want a stranger to have. But in the name of "protecting" their "investment" and all their data, such as bank passwords and credit cards, they wittingly or unwittingly grant a giant corporation access to their every move, entrusting all their personal info to said giant corporation. What could go wrong?
(Hint: both problems 1 and 2 can easily be fixed without being tracked by Apple. I suggest not doing your banking or handling critical info on a device you believe you are likely to lose, or which can be lost, whether or not you are likely to lose it.)
We assume nothing will go wrong in terms of privacy, because Apple...but at the same time, even if Apple is truly benevolent, Apple itself becomes a target from being so big and having so much data. And we know how in recent times there have been a whole bunch of major security breaches of large companies...security is just an illusion.
I'm not saying that removing this feature would prevent us from having our every move tracked, because that is obviously not the case. Basically everyone is trying to track us.
Maybe it is slightly better that Apple explains exactly how they are tracking us? But this really does not feel like a natural extension of "we value your privacy", which is something Apple recently said.