That person's reading to much into it. Before "Mermaid", the Ariel best known to the literati was probably a mischivous sprite featured in Shakespear's The Tempest
Will the naughty word filter here let me use the word nipple? Cuz I wanna talk about some nipple bloopers. In one scene of The Ten Commandments,
you can clearly see Nefertiri's nipples through her sheer dress. In Cats,
there are a few scenes where it's plain that Victoria isn't wearing anything under her leotard. (Since she's a white cat, it's easier to see than on the other cats.) In The Rocky Horror Picture Show, Columbia's corsette comes loose in the floor show scene. ("It was great when it all began...") Funny thing is, I didn't notice this blooper until they played the movie on VH1 and they blurred the jiggly things out.
Weird how I can go from talking about Shakespear to talking about nipples, isn't it?