ohh sure .. its rather sensationalised .. and not quite the doomsday scenario claimed! lol!!
load dumping .. well they did try in canada ... as all power stations have this capability .. starting and stopping a 50mW turbine isnt instant!! but as I remember the damage was the extreme current induced in the transformer cores causing internal damage to core etc. App some of these things take 12 months or more to build! ie not stock items.
Id be more worried as companies are pressured further into cost cutting .. seeing how the impact of power loss in the sydney CBD caused so much fun
Might only take a little event to cause some fun!
I hope you invested in the lead underpants along with the garlic.
rgds
Simon