Minor glitches should not happen in a 60.00 game after 2 patches especially since it didn't happen in my game until after the 1.3 patch and especially since this is the GOTY (VGA)
Minor glitches happen to NASA computers... Billions of dollars in software and hardware...
GOTY on VGA... VGA is hardly a game authority. It is a kid with an opinion, and a big wallet, hungry for Bethesda advertisemant funding. VGA is the dishwasher of the gaming industry. An editorial that steals every-one's blogs, and rewrites them as if they have an actual original opinion on something game related.
For the record, if you are curious to know what happened... That person was probably walking around in your LOW LOD background, and remained on the low LOD surface, which sits below the ground in that scenery. They just didn't hop-up, when the LOD started drawing the close-range LOD land. I guarantee that they will not be stuck forever... No need to start digging her out. This happens if you see people at the max setting. Turn down your character-view to about 8 or 9... and turn-up your detail level of the game one notch, so the ground is there for them to walk on, where you see them in the distance. (As opposed to the ground objects popping-in to view at close range, burring the distant walking people in the ground or rocks.)
As for the dragon... It is dropped all over the place... Expect them to land on houses, over walls, in the water, stuck in trees... They should fade away eventually.