Вот несколько статей с её критикой:
In plainer language the Caucasian component that is being detected in this paper may simply be a indigenous Middle Eastern ancestral element which has now been somewhat displaced northward in its modal frequency due to the expansion of the Arab
His mistake was treating the Armenian reference sample as a Caucasus group, and a proxy for the gene pool of the Khazar Empire. Thus, when the Jewish samples showed strong affinity to the Armenians, the author mistook this as a signal of Khazar ancestry in Jews, because the Khazar Empire included parts of the Caucasus.
But what do modern Armenians of the South Caucasus have to do with ancient Khazars of the Pontic Caspian Steppe? Not much, I'd say. Armenians aren't even a useful Caucasian reference set, in my opinion. They're better treated as an Eastern Anatolian group, due to their high affinity to Mediterranean and Middle Eastern populations.
Moreover, they show low North/East European input, and very little East Eurasian influence, which is actually the sort of stuff we'd want in a proxy for the inhabitants of the Khazar Empire in what is now Southern Russia.
Здесь картинки собсввенного сравнения автора разных групп евреев с разными народами и между собой. Очень советую, любителям картинок и табличек