Suppose a group has 1000 random legends. What are the odds that one of them might sort of match a distant event?

It could be like those headlines "Psychic Predicted The Last 3 Elections".

The Tibetan origin legend is not random, has been around for a long time, and is an important part of the Buddhist and Bon traditions within Tibet. The “monkey” is referencing the same race of hominid as the legendary Hanuman in Hindu myths. The idea here passed down in the Tibetan tradition is that the wild race of “ogres” have been civilized by noble influences.

So while random legends might be that, there may be other characteristics of legends that are not being accounted for with a purely random selection.

People used a similar argument to say that the eye could not have evolved from random mutations.

Perhaps you underestimate the time scale involved here?

I am not using the same argument. I am not arguing that something must be true by disproving something. I think you misundersand what I am suggesting here.

I am suggesting that there may be a legend that was somehow carried from the days that the Denisovians (ogress) mated with Homo Sapiens (monkey), so that that the modern-day Tibetans carried those genes for living in high altitudes. That mechanism for passing on those genes are exactly what the the article is suggesting.

At no point am I saying that these legends were somehow the cause. I am not sure how you got to that idea.