nah, i just wacthed it after i posted too make sure, and as he climbs up the outside steps of the tower, he looks to the left and u see like a 3 second view of the whole skelaton, watch it if u want ^-^
its at the bottom of the screen next too some ruins
I just skimmed throughout the whole video.
It seems that you where right about it.
But the bones should disintegrate over time.
The ground should also be reparied/grown overtime.
Don't wanna look like Fallout.
Also, I advise you to watch in the gameplay trailer where the dragon picks up the soldier.
Tell me, did the dragon actually had thrown him over the mountain?