I've watched this a few times, slowed down. It seems obvious that it's som form of craft (drone?) -- it flies very similar to what Farsight has shown us, but this craft is not cloaked. I suspect it's "ours" and there's another agenda behind it. The way the rocket explodes appears so very specific, as if it were "zapped". Interesting. I'm not sure why this would have been done -- as in what the agenda could be. But, I think your theory of corporate espionage/sabotage could be valid, it might be a competitor among the big industry.