What the hell are you talking about???
NORTH West Iranic Kurmanji/Ezdiki is NATIVE language of the Ezdi Kurds. Ezdi are the ancesotrs of the Kurds. Once before Islam, most Kurds were Ezdi.
My NorthWest Iranic auDNA is identical to other non-Ezdi Kurds. DNA doesn't lie.
That recent study is on Y-DNA and NOT autosomal DNA and deep roots. This stdy is just saying that Ezdi Y-haplogrpups are originally from Northern Mesopotamia. Both my Y-DNA R1a* and my mtDNA HV1b2 are native to Ezdixan/Norther Mesopotamia. Ancient Aryan Sumerians belonged to these haplogorups.
Y-DNA haplogroups R1b, R1a*, J2a, J1 and mtDNA haplogroups like HV1b2 are all orginally from Kurdistan/Ezdixan
But auDNA is much, much more important that Y-DNA. And my NorthWest Iranic auDNA is full of Caucaso-Gedrosia Mesopotamian componnet. And it doesnt overlap and cluster with NorthWest Semitic Assyrians.
My auDNA is very, very different from the Assyrians...