Comedy has always been a concept that provides some surprisingly serious moments, as much of a paradox as that sounds initially. Even things we consider light entertainment - like the Simpsons or goofy comedians -still usually have a message they want to put across at some point, to balance the laughs out if nothing else.
Indeed, having a serious moment in an otherwise funny video game can potentially create far more powerful and memorable scenes than if they'd been placed in a serious game. We all expect Call of Duty to have tragic demises, at the end of the day, but we don't expect the same from Animal Crossing or Splatoon.
Whether it's a moment that is dark when you think about it, or a moment that is clearly meant to be incredibly messed up, there's some remarkably special about having serious moments in silly games.
It's sort of like watching a kids film like Shrek when you're old enough to get all the adult jokes - adding an extra layer of intrigue and entertainment to something that was already pretty dang fun in the first place.