Burning down an occupied home, and burning an unoccupied car are both arson, do you think they're comparable crimes?
Actually let me answer that for you, because maybe this is just the legendary HN contrarian who does not let common sense stand in the way of making a point...
They're not. Sending pipe bombs to CNN is intentionally trying to kill people. Burning a police car is intentionally trying to destroy property. Sure someone could be hurt by both, but you'd have to throw out any semblance of common sense to pretend that they're comparable in malice...