If I said Italians it's because I meant... Italy.
So even if the island was full of subsaharian Africans it would still be nonsense to call Italians black.
Second of all you know the Moors were composed of black Africans and Middle Easterns right? And that the composition of their troops and people varied according to the location?
Third nah, they didn't most definitely smash the locals, in fact they were vehemently hated by them and had to deal with recurrent rebellions. Check their DNA anyway and you generally won't see more than 1% subsaharian African... But close to 10% Middle Eastern/North African
that doesn't even come from that period of occupation.