So, a couple of guys from the military say that some people have seen things they can't explain in the sky. We all know this, we've known it for years and it's been said before by different folk at different times. There's nothing new here.
That's why it's not a big story - nothing has been said that we didn't know before.
An alien being interviewed live on the evening news would be a big story. A flying saucer touching down at Heathrow Airport or La Guardia would be a big story. "People have seen things we can't explain" is just the same old story.