Board Thread:Episode Discussion/@comment-24993958-20161231141844/@comment-4010415-20170101003423

So, I've come to realize that the reason the gods didn't remove the Grimm after creating Humans is because they just plain didn't remove each other's creations from Remnant.

Sure, the God of Darkness tried to get rid of life, but he didn't do it himself. He created things that would do it, things that would counteract life.

The God of Light created water, plants, and wildlife.

The God of Darkness, to counteract this, created drought, fire, and famine.

Maybe, while the God of Darkness was disgusted by his brother's creations, he still respected him enough to not just walk in and throw it in the garbage, but rather did the petty little brother thing and made something that messes it up. While they did reach a compromise in creating Humanity, it would've been hurtful and disrespectful for the God of Light to just throw the Grimm in the garbage.