So let me get this straight. They fail to find 75% of NEO asteroids targeted, that are, btw, city busters roughly seven times the diameter of the Chelyabinsk meteor and about 50 times its mass, and even if they do find it they do nothing to stop or divert the incoming asteroid. And this is cool?"Our goal right now is to find 90 percent of the 140-meter asteroids and larger," says Chodas, but right now he estimates they're able to find only 25 to 30 percent of the estimated population of objects that size.
I think you're much more level-headed on theodicy.