Good point, but how many times does that happen in a game. And actually you still can. But it isnt like Home has no idea what happened and are seeking help out of the blue. He has made a decision and defense is seeking to over rule that decision.
Meanwhile, isnt there an umpire shortage (all sport/level official shortage)?
so A. Are there enough?
and B. if you think bad now would adding 6 or 7 umps to the college level that otherwise wouldnt be there a good idea?
and c. the aforementioned lack of reps behind the plate, nothing like being rusty heading in to tournament time.