Sure, the odds of this particulate asteroid hitting the earth so this is kinda a waste of time and money, but this how awesome Russia is going to feel when they do this. They totally kicked that asteroid's ass. So much better than say, invading a neighboring Country, which is something that Russia is always a threat to do.
I'm a big advocate of space exploration. The benefits are many, but one is that it gives you all the excitement and hard-ons of war, without all the death.