Ethier would have been ruled out and therefore not eligible for the run had there been an appeal at third base. Obviously if a runner does not tag, you can appeal once the play is over and the out is recorded, the runner ruled out. In this instance, the inning ended and there was no appeal so the run stands because Ethier scored prior to the third out. Once the half inning had concluded you cannot appeal so the coaches were able to clarify the scoring with ump at that point. I understand how this works, but I know this explanation may not do it justice. Let me know if this does not make sense and I will take another crack at it. It is the correct call though. Props to the dodgers bench coach on noticing the situation.