Yes, yes, you're talking about chestbursters. Cosmetics aside, what about the life-cycle that was a major deviation? Forget about pretending that something is or isn't a major deviation. It's that word "should" that I hate--that these changes should be made, per life-cycle, or these cosmetic approaches adapted. It's utter nonsense.
SM: "Oh, the chestburster should always look the same and you need to make sure people understand it's a major deviation if you give it arms. And the queen should look different." Right...