You’re misinformed. Veils has been around the whole time.
Ah. Good to know. Not quite sure where I picked up that idea, honestly.
I’m willing to bet that Curators/Masters can either shapeshift in some way, or "fold" themselves down to merely intimidatingly huge instead of the Locomotive-sized monsters they are when flying around. Skies explicitly mentions eyes "as big as dustbin lids" when describing a Curator (see https://sunlessskies.gamepedia.com/Curated), which would be extremely noticeable for any character that ends up interacting with the Masters. As to whether "golden god-flesh" was exaggeration, literal, or indicating that Candles was Shaped/Scienced prior to his butchery is probably ground for a different debate.