I only watched the first minute or so, but if the box was approximately correct, and the batter stepped out of it (and there didn't seem to be any discussion on this point), then the umpire made the correct call.
The coach "accepted the field" (or whatever the official wording is) when play began.
I stopped watching because the discussion had already become redundant and the umpire should have had the game going. The coach hadn't done anything to get ejected at that point.
I wish you-tube would go away.
