They are forcing reboots, but they aren't
communicating with each other to force reboots, as the article was speculating, and as the commenter was arguing against. Instead, it's just a 72-hour clock.
Also, they were calling the networking hypothesis "far fetched" and "pretty unlikely", not "impossible". I had also considered that hypothesis far-fetched, because it wouldn't just need the existence of local communication, it would also need a special protocol, trigger conditions, false-positive prevention, etc., all for that one feature.