Well that's horrifying, can't wait for Samsung to disable my phone because I went on vacation to Cancun...
That was the first thing I wondered; how will they avoid this? Let's say I'm going there for an extended trip and decide to get a local SIM card. Will my phone just go poof?
So your exposure would be if you decided to factory reset the phone, use a new Samsung/Google account, and get a local SIM.