> that makes it unclear who the victim of this crime really is.
Ah, okay - sorry, I missed this. There isn't really "a victim" here per se; it'd be hard to point at a person and say that they were hurt by what this guy was doing. Rather, it's a crime because it has the potential to destabilize the rules of how our financial system works. And, by implication, how our political system works. Money and politics go together, everyone accepts this.
Government rhetoric (I guess) requires them to label it terrorism, but that's really stupid. They could have used it as an opportunity to explain how our economic system actually works. Of course, if you explain how the system works, people may ask deeper questions, etc.