The protracted people's war is a theory and revolutionary strategy.
Terrorist is merely used as a pejorative towards groups one ideologically disagrees with.
You might want to give some Trotsky a read:
Leon Trotsky: Why Marxists Oppose Individual Terrorism (1911)
We acknowledge that revolution is the only way for workers government to emerge.
This is because we do not deny historical fact and understand that political superstructure is built on top of an economic system.
When you were an anarchocom did you think anarchocommunism would emerge peacefully?
No. The exploiters have never let their power be removed from them.
If you are going to judge the Phillipines People's movement for fighting against Duterte and being labeled "terrorists", then you have shown your true colors about caring more about nonviolence than morality or justice.