Allow me to clarify this so most of the board readers can understand.
1) in a 4 man infield if a batter has to keep it fair or sees a bigger hole than normal up the middle many times batters will intentionally hit the middle. The intent is to hit the middle to get a base hit.
2) it’s the same in a 5 man infield whether it is be right side middle or left side middle
3j I believe what you’re referring to is a batter trying to intentionally trying to injurie the pitcher. That is what has no place in this game. If there are legal consequences as a result I would most certainly defer to you for that.
Hitting the middle strictly to get a hit is and always will be part of the game. Unfortunately pitchers do get hit and most everyone does not want that.