Personally I don't think it's necessarily outlandish because these things are complicated. None of the black Orville characters are leads, and McFarlane made the helmsman a goof-off on purpose, who almost got killed because of it, so liking or 'liking' that character per se is not a sign of enlightenment when it comes to how one might view black characters.
He's also identified as a genius.
Who knows what goes on deep in any of our subconscious minds? Though I didn't have a problem with Avery Brooks (my youngest son is named Benjamin, and it ain't because of Franklin or Pearce) nor Kate Mulgrew as series leads, though the writing let them down from time to time.