I'm not an economist, nor was I in the room when the sanctions decision was made. I can only guess that the experts who were in the room decided that depriving

I'm not an economist, nor was I in the room when the sanctions decision was made. I can only guess that the experts who were in the room decided that depriving Putin of economic means was a time-sensitive process, and that petro-sanctions alone would take longer to have their effect than the Ukrainian army could hold out. At the very least, that's one of many possibilities of what happened.