On the other hand, reports of large, multinational networks running static routing in their cores seem to indicate a desire to have routing in the core more stable than any dynamic protocol will allow.

Or lack of sufficient clue in their IT departments to implement anything but static routing (sadly, very often the case in my experience). Which of course is preferable to the four-router thirty-route OSPF "designs" I have seen that put each router in its own area (!). ---rob