Just remember the video of ISIS burning two Turks to a crisp. If that's not bad enough, which it isn't (our government doesn't give a shit about those two soldiers), remember 11am September 11, 2001, when two jets destroyed our tallest creations and killed so many people. In 2001, they fucked with us on our own turf. This is the reason why you're fucked if you make an Allah Akbar joke on a plane.
So I guess it would count as carrying a dangerous explosive device.
I grant that basically any large lithium batter can do the same (or be induced to do the same), but this one was both common and could go off accidentally, making it a more common and therefore likely threat.
Suggesting that someone go to jail over "SSID naming convention contains Note 7" is absurd.
This is definitely a description of what happens to the batteries.
What difference does it make that you decided to do so electronically?
Speech used to incite panic or create a riot can absolutely land you jail.
[0] https://en.wikipedia.org/wiki/Shouting_fire_in_a_crowded_the...
( image for those with clients that don't support those glyphs - http://i.imgur.com/hvz8yHY.png )