Yeah, Rood does not possess that reptilian blue eye in his awakened form either.
My opinion on the state of matters is, some people just look at the literal sense and believe in the surface value of the story, without looking for underlying meaning.
Some thing can be taken literally.
I wonder did people ignore the fact that Meredith can't be a normal human due to the fact that he exist since forever? He must be more than human, hence the demonic coexistence theory comes into place.