Berber-origin Haplogroup E is only about half of that in Iberia. The other Half is from Romans

Hm... Haplogroup E in Iberia is only about 12%, and the Berber-origin Haplogroup E is only about half of that. ~6% on the Y-line is not sufficient to differentiate Iberians from other Europeans, especially considering that they have greater percentages of typically European haplogroups (like European-type R1b at ~65% and Haplogroup I at ~7%, not to mention European-type Haplogroup E at levels not too far beneath Berber-type Haplogroup E). And I suspect (but don't have figures onhand) that Berber contribution to Iberian genetics is significantly lower in non-Y lines than in Y lines.

http://www.eupedia.com/forum/threads/26579-The-Haplogroup-E-in-Europe