In a way, Johansen caused two crashes. The obvious one when he fell to the ground as number two in the peloton, but he also - indirectly - caused the second crash some meters further back because he had pushed the tempo up as he approached the roundabout. It was simply a too risky move, and he can't blame any other than himself (or his manager who might have urged him to go forward). But I feel sorry for the riders that went down because of this.