User blog comment:Zathronas/Analysis by an author: World of Remnant, Grimm/@comment-10390252-20141017104932/@comment-24218038-20141017124910

What evidence?.

A: Grimm attack only man

B: Grimm chose to attack man as it does not need it to survive.

C: Therefore Grimm was made to destroy man?

Hell of a leap there.

Here's another example with your line of reasoning.

John hates spiders.

John kills every spiders he sees. Not for survival but because he hates them.

Therefore John was made to kill spiders.

I'm not saying it's impossible. They could have been made to kill man. But at this moment no proof shows this. You've made a classic deductive fallacy here.

If we look at it as pure speculation on the other hand, I could see it becoming true in a later season.