The only plausable explanation...
So considering that in the Star Wars films it generally doesn't take anyone with a light speed equipped ship much time to jet about from spot to spot, I'd assume that that galaxy is quite small... a bit like the one in this story.
The Galaxy in this story is also far far away... and at the distance from which we are observing is it also fair to say that what we are actually observing happened a long time ago...?
I'd summise then that the star sucking death planet space station thing in The Force Awakens has been emitting its death blasts on a higher frequency than that shown on what we can now also assume to be a documentary, rather than a work of fiction.
Thankfully it was destroyed so these emissions should stop soon. But what if those Galactic empire bastards build another... only bigger?