Comment by t-3

Hitting the enemy where it hurts. It's much more effective to hurt Russian morale by making big explosions and petrol rain from striking a refinery or stopping/delaying shipments to the front line than by shutting down a center where a handful of people work and that won't directly impact the war. Ukraine must making fighting painful enough that the Russians withdraw, because the math of attrition favors the much more populous and richer Russians long term.