DuracellEnergizer said:

TOR just followed it by simply saying that there were more humans in the Empire (workers, soldiers) than Sith and that the Sith genes were eventually outweighed, therefore majority of imperial look human at that time. So essentially all the imperial humans still have a percentage of Sith genes.

In other words, they're watering down what was once a unique take on the Sith in order to mesh it with the prequels because the prequels are just oh-so-good and everything has to reflect it.

Yuck.

Why prequels? Although not said on screen, Vader and Palpatine were Sith in OT... long before the prequels came out. Then TOTJ made a story where Sith became red skinned aliens. Someone had to connect the dots then. TOR did it pretty well.

DuracellEnergizer said:

As for Empire having many species, that is just wrong. TOR portrays the Empire extremely anti-alien (Sith are not counted as aliens of course).

Well, I was going off of this picture.

And she's a Zabrak, not a human or Sith (as an aside, I have to say I love the purple lightsaber).

That is a promotional material. If you played the game you would quickly get the proper feel. Though the game allows to pick non-human and non-sith, it is purely to satisfy the players who demand customisation. It does not serve the story at all (maybe for Inquisitor storyline a little, but it pretty much opposes Warrior and Agent).