well, if God (whoever you may think it to be, or them to be)wanted to make us perfect, he would make us ten feet tall, bulletproof, fly, leap tall buildings in a single bound, strong enough to lift Chicago, be able to go in and out of parallel universes, omniscient, and be able to crap lighting and thunder out of our asses LOL.
I dont have much knowledge of the biological aspects of ID. I know more about the Anthropic Principle than debating ID and biology. But one reason why we are not perfect is because we are suitable for our environment. We dont need to be superman to survive. With the brains we have, we dont need super strength like a Grizzly or a gorilla. Our brains are more than enough. And even that is not without drawbacks.
Might be back later.
"The Nephilim where in the Earth in those days..." Genesis 6:4