It's too early to specify what precisely this storyline is poking fun at, but I will say it's basically a genre unto itself.
I was hoping to use basic animation techniques to make this chibi-style storyline easier to make (the copy and pasting I was referring to in the previous commentary). I did that for the robot butler in the previous storyline and discovered some tricks while doing so, but after some experimenting, I've learned I'm not ready to go directly from a simple robot butler to chibi Susan and pals.
It's something I'll keep experimenting with as there are some non-canon storylines it could be great for while basically putting production on warp speed. I'm not going to do it if it's terribly noticeable, however. The goal is everyone looking really consistently on-model, not a sudden major shift in style or sudden lack of physical expression.