BOF I spent so much time on two posts and you said it all in only a couple of seconds.
Something else I was thinking about. The parent mentions the fact her son plays on a great summer showcase team. It's not like this is his only baseball experience of the year. But it could be the most beneficial learning experience of the year. There are all types of coaches. And there are all types of baseball experiences. There will come a time when the parent has absolutely no control over the situation their son is in. The player will have to learn how to deal with it. Some times the player will have to buck up and do what he has to do to survive.
Running five miles and being screamed at may not be beneficial at all. But learning how to cope with a situation like this and deal with a situation like this is. Or you can quit like some of the other players did.