I don't agree. The run was off-tackle to the left away from the offside wing.
Did you watch the video clips in this forum?
http://www.officialforum.com/thread/24802
That wing had no view of the ball at all, the QBs back was facing his way.
I'm convinced that the defender while making the tackle used his right hand to keep the ball from breaking the plane.
As a result, I think the correct call should have been no TD and let replay try to over turn that call, which I don't think they could.