I understand the Yellow Sub dark response. And as many of us might consider the Tavistock interference-re: Yellow Sub’s subtext…the underside of the parable is decidedly dark.
However, the ‘Blue Meanies’ is also a forewarning (think of Simpsons or South Park contexts)…so–while the feeling might’ve left a sour taste in our mouth, we were still being enlightened.

Orwell’s “1984” message wasn’t a pleasant one. And The Beatles spin-offs weren’t always ‘unicorns & rainbows.’ “Revolution”-the song had a line: “you can count me out (in).”…The subtext often contains the clues.