When Noodel was first introduced, he was supposed to be a benevolent Lovecraftian monster. I thought he needed a human translator because he thinks and behaves in a way that is completely different from a human. He was also tiny, which is the thing that sets him apart.
In this comic, Noodel is visible and can speak/understand human language. It's Snuggly's trollface jock speech all over again, just another boring villain made lame(r) by being humanised.
Mookie cannot write humans and he cannot write incomprehensible non-humans.