Nothing wrong about asking explanation on a call, but as coaches/parents in sports we must realize that refs and timekeepers are human and do make mistakes. After an explanation, we must accept the call, period.
The incident towards the end just about escalated into a mass rumble, and was wrong! There was a young boy standing next to me that started crying because he was scared. It was right before my boy's match and he was terrified. That is not what kids wrestling is about.
Those actions are teaching the kids that when something doesn't go right, we fight about it. Not good for our society!