Science is an exercise and a human endeavor and one can define a particular belief as supported by science and be dishonest. The debate really isn't that ID does this but that proponents of ID claim that the academics defending the modern synthesis of evolution do this.
This article sums it up nicely.
The quite beneficial goal of the ID movement is to push science back into the limited magisterium to which it belongs and make it is acceptible again to credit God with taking an active role in His creation.
So science can become the handmaiden of theology again? I think the Middle Ages are already over.