They've recalculated the demise of the dinosaurs, it says here, and are still figuring out how many earth-like planets may be out there. Not that we're going to any of them any time soon, or ever.
If there's one of them 13 light-years away, that's still further than anything we've got could possibly make it in one piece in a time frame longer than anyone could possibly survive. So it's a purely hypothetical situation.
And if small, cool red dwarfs are the most common stars in our galaxy, as reported, then our galaxy must be in either its middle age or perhaps its old age, because a red dwarf is usually one of the final stages of a star's life.