It may act like a fire in the forest to rejuvenate the species, perhaps coming at the expense of one or more strains of the species. Only time will tell. I agree with the above that there is an extremely high possibility that some portion of the human race will be destroyed by a technological event in the future. We are practicing denial if we believe that the powerful and increasingly wide-spread technology of destruction will not someday cause us harm. It's like leaving matches out at arms reach in every classroom of a grade school, but expecting that no one will start a big fire because it would be dangerous.
Individual people can be wise, but it only takes one fool to bring catastrophe to many.
Unfortunately, any event catastrophic enough to knock off a significant portion of humans would also kill most other visible life forms within range. Much more than humans would suffer from our display of stupidity. The article makes me worry about the rest of life besides the all-important us. The loss of humans would probably be good for the world if only it could be accomplished without blasting everything else. But as the person above commented, I'm not ready to volunteer for extinction.