Am I right in thinking that the user has to have attempted to connect to the network before the bug has triggered (I'm assuming so, since AFAIK iOS doesn't randomly download SSL certs from WiFi APs). If that is the case, calling it a 'no iOS zone' seems a bit much. The title makes it sound like some kind of iOS Specific "Cyber-EMP" ;)
Carriers pre-populate iOS 8 phones to automatically connect to their wifi signals.
This hack involves spoofing official AT&T and Sprint wifi hot spots that the carrier has forced you to trust.
I don't use any iOS devices anymore but I have many friends that do, is there a convenient way to disable these preconfigured wifi hotspots permanently?
Edit: according to the article you linked (under the consumers section), iOS has no interface for doing this. I find this pretty appalling.
The impression that I got from the article was that there was a separate, known iOS bug which would cause devices to connect to a wireless network without user intervention.