Because the creator has magic powers and the universe does not.
Calling something "magic" is hardly an explanation. Unless you then go on to explain magic, you're simply calling the concept unexplainable and giving it another name.
Unless you consider the creator a god with supernatural powers, then its different from the universe and could have properties that the universe could not.
Again, ascribing something to the supernatural is not an explanation. It's simply a way of calling something unexplainable.