No matter how well written one cartoon show may be they are (mostly) a commercial product aimed for kids so there is a limit of how deep they can be. I see people go on crusades about how mature show X is and how show Y should be burnt to ashes and I just shrug.

Between the need to sell products, keeping it simple for the audience and avoiding touchy subjects to fit a PG rating I'm surprised the writers manage to write anything.

It's a show for kids, I'm okay with kids getting invested into it but the old me just smile and nod, or change the channel if it fail to catch my interest.