Oh I am so disappointed. Although I am in England, I have spent may weeks in Valleyfield, south of Montreal near US border. Missed it by about 50 years.
On another note, I think we do need reminding that our personal rock is not immune from impacts, as a plague has recently hit us.
Fortunately, the Late Heavy Bombardment is long gone, but I believe we may still be vulnerable to comets or other objects being dislodged from the outer Solar System. I am also minded to recall that sometimes 'swarms' of objects are believed to (sometimes) include one or more large objects together with a large collection of objects arising from collisions, ranging from dust to anything in between.
It is good to see that early detection means are being put in place.
Cat