Kryptonite Plausibility Affected by New Science

I saw this science news article
https://www.space.com/the-universe/asteroids/solar-system-teeming-with-1-million-alien-invaders-from-alpha-centauri
about how there may be a great many chunks of rock from the Alpha
Centauri system in our Solar System.
In that case, maybe the vast distances between the stars don't make it
implausible that more than one Kryptonite meteorite could have been
found on Earth during the Silver Age run of Superman comic books - even
without the explanation that they followed little Kal-El's spaceship to
Earth through a hole it ripped in space.
John Savard