The thieves will sell them & get their pay day. The thieves won't care that the buyers can't activate. They've already got their money.I support Apple mobile devices in an academic medical center, and yeah, we can essentially brick them remotely. Apple must track the serial numbers on these, and they can make them useless. That would prevent the thieves from using the phone and probably tick off their customers, but it would do very little to catch the thieves or recover the phones. They'd have to allow the phones to be activated, then track them to see if they could figure out a pattern of where they appeared. The thieves would likely be smart enough to disperse them over a wide area. Likely. A lot of thieves are stupid.
It's not like the thieves are going to accept returns & give receipts.
Just means 100's of people will buy bricks they can't use and will be out of pocket.