Not in the sense of making it an "intentionally defective grantor trust," if that's what you are referring to. To be defective in that sense, there are certain powers that have to be included in the document, for example, the grantor having the right to substitute assets in the trust. 

I suppose it could be "defective" in terms of what the grantor thought the results would be from the language in the  trust document vs. what the results actually are. But that's beyond the scope of this commentary 🙂