or, if there is any likelyhood of there bieng 32 more such asteroids, now, it is inevitable but to pose a significant risk to a habitated place, would take many

or, if there is any likelyhood of there bieng 32 more such asteroids, now, it is inevitable but to pose a significant risk to a habitated place, would take many more than 33 asteroids then there is luck, call it further uncertinty if you must but what we can predict with 100% certainty is increased budgets for space defence, and lots of start up rocket companys pivoting in that direction