I was under the impression that Paolo Ortega was a Spaniard, which is still 'other' in terms of the rest of the mostly-white cast.

Martin was also working against the Red Court, instrumental in their destruction. He was also not full Red Court. Paolo Ortega, Lady Ariana...admittedly the twins in the fourth book were white, but they're a gender-fail and they die in that same book. All the big movers and shakers are Hispanic/Latino.