By this token, any kind of lobbying is also terrorism. Hell, any kind of activism in a political space "is designed to influence a government and is made for the purpose of promoting a political or ideological cause".
Seems like a perfect illustration of the kind of slippery slope the world is on.
This article seems to also parallel well with the Russian detention of a Greenpeace ship and charging crew with piracy: http://www.abc.net.au/news/2013-11-02/piracy-charges-against.... Effectively, "it's piracy because we say so", just like "it's terrorism because we say so" logic in the "Ports Circulation Sheet" document.