Only by sheer coincidence would blind factors produce such remarkable things, and coincidence is never that lucky.
If you want your sons and daughters to be well educated about evolution, then hope their biology teachers don’t rely on materials from the Genetic Science Learning Center.
A memory of past events helps a cell learn how to respond to recurring threats and protect the genome.
Is it reasonable that two populations would independently hit on an adaptation by chance?
Such manipulations, if ever done in humans, could a profound impact on human society going down the generations.