Just wanted to chime in on this. Just spoke with W:H to confirm, and this was one of the several pieces intentionally removed from the video just before duplication to make all of the Mystique content fit on one disc. We had to review the content carefully to only include the best of the best material, and this was one of the pieces removed in that streamlining process.
That said, the short clip of it in the Unveiled teaser was in fact a mistake, and we will correct that teaser clip ASAP. It was simply a matter of it slipping into the teaser video by editorial mistake. The full list of Dangerous contents (both discs) can be seen directly on the Dangerous page
here - with a full description of each piece of content available
here.
I apologize for any confusion - we will get this fixed up ASAP.