1. If the player that scored the goal and celebrated doesnt score that many goals i think it should be alright.
2. If a player that usually scores goals in games and the game is a tight match that is hard fought i think its ok.
If your team is up by multiple goals and you have a player that usually scores alot and he celebrates, i dont think its alright. There is no need to celebrate a goal that gives your team a 3 goal lead or so on that is just rubbing it in thier face.