Is this a titanium frame, one of their short-lived aluminum frames or one of the new carbon frames? The Ti frames will tolerate a lot more than either of the other types.

The Ti frames have a collar at the top of the insert that you could probably grab with a pair of needle nose pliers or a small Vise-Grip to hold it in place while turning out the bolt. Then you could tighten the insert using the qr skewer technique shown in the Park Tools web site.