User blog comment:SpiritedDreaming/RWBY: Attack on Kevin Tower Defense Game/@comment-27888871-20161008235649/@comment-28288412-20161009004805

Besides, this isn't "Destroy then rebuild" situation.

You're just making something even more difficult to deal with. You succeed and then you have to get rid of the Grimm, all you are doing is changing one obstacle for another.