Good post. This is how I feel as well.
MLB has endorsed doing whatever you want, and that's an adjustment I need to make. I won't be entertained by it because that's not what I like about the game, but that's beside the point.
So the players need to get on the same page and let the players do whatever they want short of taunting the opponent. Whether they need to define that--like no eye contact with the opponent or yelling at a guy, I don't know. But Tim did only express his pleasure toward his own team, so Keller, Maldonado, and the Royals should have let it go. The throwing at a player needs to be curbed way back. There probably will always be a time where it happens by competitive men, but it needs to happen less often.