I think that human nature biases us so strongly to inventing stories/causes (even when there are none) that it's almost impossible for us to accidentally assign too much importance to random factors.

It's a constant (and often un-examined) uphill battle against stuff like the "hot hand" fallacy or fundamental-attribution-error.

That's why I feel the default assumption should be that they got there by chance rather than that there's some kind of narrative cause we find instinctually pleasing.