Look at it from their point of view. It must be nice to watch something that is not making you feel guilty or someone saying something negative.
This is a feel good song that is thrown in after a bunch of guilt inducing pieces.
Anything different will be appreciated.
We do something similar at workshops and trainings I go to for work. They throw some humor or entertainment in because your attention starts wandering, then they hit you with "serious"stuff when you are relaxed and can refocus.