Yes I am well aware that their eyes are not actually slit, I didn’t mean literally. Look at the pupils. Point remains. As I said I can buy it as a coincidence but it’s still an unfortunate one.
And if they all talked with a California surfer accent, nobody would even notice the eyes.
But they don’t, so we do.
If the Episode III doc about designing General Grievous is typical of the process, characters are designed with just a vague description by George, and the concept artists never even see the script.
But he signs off on everything, as the docs also show.