Because it's not as big a deal as you think. The result achieved is the first moment the laseroutput energy has been eclipsed by the energy output. But the en

Because it's not as big a deal as you think. The result achieved is the first moment the laseroutput energy has been eclipsed by the energy output. But the energy input to the laser absolutely dwarfs the energy output still. Think like, an order of magnitude more energy before it becomes equal to the actual energy needed to achieve fusion.