Something happened in the NCAA about this this year. If I recalled correctly a player ran on the field in front of the umpire, umpire warned her not to do it again. Sure enough later in the game the player did it again and umpire nullified the HR. They didn’t mind all the players running out of the dugout but wanted to players to stay off the field so he could make sure the runner touched 3rd and home.
If I remember correctly the umpire warned the players from the bench to not enter the playing field before the batter crossed home plate and they did it again and had the HR nullified.
Over officious official!