This texture pack sounds great! Actually it's more of an "un-texture pack" since it removes the textures of the bosses. This seems like a great challenge to try out soon, I've been getting bored with Terraria, and the only think that brings me back are updates usually. Thanks for making this!
You don't have to bite off the creator's head just for something you think is easy to do. It's a nice concept and you should be supportive because that's how creators grow and benefit the entire community. If you discourage them, what does that say about yourself?