OMG! The song is literally called "The Most Terrible Time of the Year"!
They managed to say something disheartening to everyone on Earth except first-act Scrooges and Grinches. Doubt Ebenezier ever set foot in a McDonald's, and Grinch never left his mountaintop home, so... [Yes, I know not everyone celebrates Christmas, but that song title is just a massive dump on your day, regardless.]
What's their next marketing step? "Everything causes cancer, so you might as well get it from McDonald's!"
The song title basically ensured the audience would bounce before the uncanny eyeballs even appeared