I originally asked that question thinking - 26 plus atomic impacts and not one over a populated area- the odds are mounting against us.
Also you never know what will eventually rain down on us.
Following up on the original article, in the video within the link below they say "most " were high altitude impacts.
Looks like the 2009 explosion that brought down AF 447 didn't make their list.
Indeed, the odds do seem to be mounting against us.
I'd be interested to see whether there's any correlation between the locations of impacts and the location of grid points. The logic being that if comets or space rocks contain metal or have an electrical charge of some sort, and grid points have a magnetic component to them, then there might be some interaction going on.