So, what does that mean? Well, it states that Suwinski should have been out ... if the Nationals had simply appealed to any umpire and asked for him to be called out after stepping on the bag. Had they done so, Suwinski would have been called out as the fourth out of the inning.
But since the Nationals all left the field before anyone inquired about Suwinski and Suwinski crossed home plate before Park was tagged out, the run counted even though the inning was over. Had Adrianza simply touched third base instead of or before tagging Park, the run wouldn't have counted.