Whole-genome ancestry of an Old Kingdom Egyptian

I'll have to bookmark it for later to spend more time than just skimming, but I find 2 things interesting. The lack of any Egyptian archeologists on most interesting and significant findings about Ancient Egypt is one. The other is the seemingly strong conclusion that Ancient Egyptians did in fact move to Egypt from Mesopotamian which is pretty cool.

Egyptians don't like the notion that "they moved there from somewhere". They claim their own unique, uninterrupted, history and connection to the land as well as their civilizational independence from Mesopotamian, Asia Minor, Europe, and Africa.

It's also the same you rarely find Egyptian archeologists/scholars on scientific papers. While this might be a matter of ancient history and science to everyone, it's a matter of current day politics for Egyptians and especially the Egyptian government. The "findings" of the paper has to agree with the narrative built and proposed by the ministry of antiquities or they will literally charge whoever publishes it with a national crime.

The other is the seemingly strong conclusion that Ancient Egyptians did in fact move to Egypt from Mesopotamian which is pretty cool. Egyptians don't like the notion that "they moved there from somewhere".

How do you conclude that from the fact that 1 man of the era had 20% of his genetic material from Mesopotamia?