No, that was following people in several systems, in order to take aggressive actions against them. example given :
This specific stalking becomes legal, as well as all the other examples given there, once you wardec someone. Just as it is legal out of HS.
Not all all. What your quote says is that wardecing -that is, the act of initiating a war - can not be considered illegal harassment. So you can wardec whoever you want as much as you want, without a risk from CCP.
In the first sentence they talk about war DECLARATIONS and in the second, about “wars in general”.
So war decs are not harassment, but a war allow you to take actions that would be considered otherwise as harassment.