Edit- Getting a pretty negative response here, and not really sure why. I support Luigi and what he did, but we don't need to rewrite the dictionary. If oligarchs decide to oppress, they will (and should) get terrorists.
It was terrorism. That doesn't mean it wasn't necessary. Squeeze people the way insurance companies do, and eventually they'll start to bite back. If oligarchs don't want people to resort to terrorism, they can loosen their grip any second. Keep fucking people over, and we'll get more terrorism... it's a pretty predictable cycle that boils down to 'fuck around, find out'.