I'm of the firm opinion that the only thing unintentional about Rosberg's move was the very final misjudgement resulting in him hitting Lewis. However my beef is what Nico was doing hanging on so long up the outside of Lewis, where oh where did he expect to go - more to the point what did he expect to gain from positioning himself there?
Seems to me his positioning was clearly a recipe for trouble, either just for himself if he took the escape route avoiding the corner, or for both; which is indeed what happened.
I think the nub of this whole saga is that at this level of racing both his team, and everyone else, can't quite fathom how such an experienced driver can make such a stupid move, especially having inherited the second spot from Vettel whilst watching him take the escape route trying a similar line at that same corner on the lap before. ......Just plain
an avoidable accident in my view not a racing incident.