It's true, they did destroy written records (especially the Khipu I mentioned before).

But what can the creator of this tool do? Call it "partial atlas of history based on what we have left after 5000 years of wars"?

It is what it is, whoever built this atlas included EVERYTHING[0] known or possibly known. The result might be Eurocentric based on all the reasons stated above, but I don't attribute it to malice from the creator of the tool

[0] It's clearly not everything. There's knowledge of the Tehuelche people in my region (Patagonia, Argentina) for example that doesn't show up here.