Quote Originally Posted by Ruck View Post
All his quotes on the MitD are available in the OP. I think this is what you are looking for:
And even if he had said the specific illustration thing, that wouldn't rule out protean, since all instances of it could have been emulating two-eyed creatures. It's impossible to rule the protea out by saying it's always depicted with two eyes, because the vast, vast majority of creatures have two eyes. At the absolute worst, it's playing to probability, which is still totally cool with the monster being a protean.