This study has been debunked mant times already by other scholars. I also debunked it over a year ago in this thread:
That's racist!
If you want a succinct takedown of the study read this abstract:
https://www.researchgate.net/public...enomes_from_northern_Egypt_Further_discussion
The main problem with the study is SAMPLING. The authors themselves admit this flaw. Basically what they did was they sampled bodies from only one site in northern Egypt during the time when Greeks ruled Egypt. It's the equivalent of digging up a grave in Harlem during the 1920s and saying the United States was made up of just black people. That's an error in sampling.
I've already said many times in this thread that northern Egypt had non-black people living there for millenia. Also I told you that foreign nations from outside Africa conquered Egypt many times. You can't dig up bodies from graves during the Greek occupation and say it's representative of the entirety of Ancient Egypt.
Remember Ancient Egyptian royalty primarily came from the south so this study you cited does not include any Pharaohs or royalty in the study. However, I have here a DNA study exclusively on Ancient Egyptian pharoahs and other members of the royal family and guess what this study found?
Sub Saharan origins for pharaohs (new DNA studies)
You can download this study as a PDF of Google but I've linked another forum discussing the results. Basically in one of the few comprehensive DNA tests of Pharaohs what they found was the Pharaohs were most closely related genetically to Sub-Saharan Africans. So it turns out if you test grave sites from the Greek occupation of Ancient Egypt you get results that say the Ancient Egyptians were related to Europeans. However, if you actually test Ancient Egyptian pharoahs from when native Egyptians ruled you get test results that say they're related to black Africans. Surprise. Surprise.