I'd disagree somewhat. According to the article it appears that you can remotely escalate your privs using the exchange server to do so. It is up to the domain admins to figure out some way to mitigate, but anyone in a position of authority in a corporate environment should take note of this, because it could make hacker's lives pretty easy until it is fixed. From what I understand, 70+ of all hacking is done by internal folks.
Good point.