His handiwork speaks for itself, ie, it's flawed.
There's nothing particulary intelligent about Intelligent Design. Evolution explains what theology would have us swallow unexamined.
Enlightenedly,
You seem to have missed the point that your argument is not a scientific argument; it is a metaphysical argument predicated entirely upon certain assumptions, which may or may not be true, about what God might or might not do.
There's nothing necessarily wrong with making a theological argument, but it is still not a scientific argument. Even worse, what does "flawed" mean in the first place from an evolutionary standpoint? An accusation like that implies a standard. Unless your yardstick is independent of the thing measured there can be no measurement. How does evolution yield a measuring stick? What is it, and where do you get it from? How in the world can evolution produce anything "flawed"? What are you comparing the universe to when you say something is flawed?
There's nothing particulary intelligent about Intelligent Design.
Again, you have to assume intelligence in the first place to make such a judgment, even though your mind is, on your view, a product of the the non-rational. You have to also assume that intelligence and logic are valid in a non-rational universe, even though you cannot account for it.
Your theological argument is like a pot saying to the potter, "why did you make me like this?".
Cordially,