I2a2 is most definitely Illyrian.I agree I2a2 is not Illyrian,it is native west Balkan,possibly Vlach,because secondary maximum is in Romanian Moldova(+40%).
However,i think what Sprinkles tries to say it may be Illyrian in sense Illyrians assimilated the I2a2 people(like today's Slavs did).
I found some study on the net which shows Kosovars have cephalic index of 83,5.
Illyrians were probably a mixture of I2a2 (mostly) and E1b1b. The Greeks were in contact with a mixture of 50% E1b1b and 50% I2a2 Illyria's. All the Illyrias from Hercegovina, and north, were I2a2. The cultural capital of Illyria was in Stolac, Hercegovina. This was, with all due probability, a haplogroup I2a2 tribe.