|Approximate location of the findings|
One detail I notice in the Wikipedia reference is that so far it was believed that the Kuban culture was derived from the, slightly older Colchian culture of Abkhazia and West Georgia, however this discovery would suggest that the opposite is true instead. This in turn may provide a frame for the migration of NW Caucasian towards the South (but notice the possible affinity with extinct Hattic), or alternatively for the arrival of Kartvelian languages maybe. It looks too recent anyhow to be related to the expansion of the Indoeuropean Hittites, which are known to have been in Anatolia since at least the 18th century BCE. This matter is admittedly complicated and surely warrants further debate in any case.
Update (Oct 13): Jean points me to this other small article at the Kyiv Post, which includes several images of the sites and the air photos that allowed their localization:
The phrasing of the relationship with the Kuban culture is significantly different (merging instead of precursor) and also the description of the area (eastern limit is said to be Kislovodsk instead of Nalchik), but I’d say that the Telegraph article seems better informed, even if it lacks images.