Am I missing something?

[Dakota]

He was SCREAMING the pitch (14u game) exactly in the middle of the delivery, doing the most damage possible.

I would have put a stop to that, too, but because of timing and decibels, not because he was being unfair or making a travesty of the game by giving his batter information about the pitch. It could be ruled as either unsportsmanlike conduct, or verbal interferance. Either way, it would stop or the coach would be gone.

And, again, the "it" that would stop would be the screaming during the pitch, not the instructing of the batter.