There was a troop of black mercenaries fighting for the Greeks, that's totally fine, that doesn't mean that Greeks and black Africans are interchangeable and that Greek gods should be portrayed as black. Do it right or don't do it at all. 

Above all, I want accurate visual fidelity. I don't want modern woke DEI crap in history movies and shows. I watch them to feel transported back in time for a moment, I don't watch them to feel self-righteous about helping modern marginalized groups feel more social equity or whatever. In fact, seeing them in these productions pushes me further away from being an ally and closer to being an enemy, it's getting to be that annoying for me.

But yes, to your point, I am absolutely fine with including them, but I want it done accurately and with some respectable degree of fidelity.