[pmccool]

I disagree. The list you mention is part of the definition of "terrorist act". The definition of "terrorist act" starts by saying:

terrorist act" means an action or threat of action where: (a) the action falls within subsection (2) and does not fall within subsection (2A)...

The list of things you cite is from subsection (2). However, subsection (2A) reads: (2A) Action falls within this subsection if it: (a) is advocacy, protest, dissent or industrial action; and (b) is not intended: (i) to cause serious harm that is physical harm to a person; or (ii) to cause a person's death; or (iii) to endanger the life of a person, other than the person taking the action; or (iv) to create a serious risk to the health or safety of the public or a section of the public.

It's pretty clear to me that this sort of action falls within both subsection (2) (as you pointed out) and subsection (2A). The latter means it wouldn't be within the definition of "terrorist act".