In a simulated world environment we can change and adapt rules as we please that would not be possible to apply on a real world situation. I can, for example, decide that the world I am creating is void of gravity, and that trees grow from top to bottom and not the other way around. In games of the genre role-playing, we are playing a role. And as we play that role we usually abide by the rules of that world. When those rules are different from the rules people are used to follow, the player has to learn those new rules. By making communication work more like what happens in reality, the way NPCs communicate with each other becomes easier for the player to understand.
This was a funny idea I had where I actually drawn the assets on a piece of paper, took a photo with my phone and later used paint.NET to cut the parts of the drawings I wanted to use. I wasn't really trying to make a fun game here. I was simply trying to see if using hand drawn assets game the game cool graphics.