These are from Cal South, and apply to all game officials. So I guess he's being generous, as are all referees for putting up with the violation of these rules in every match. I know I'm guilty on occasion as a parent or coach, and I appreciate the discretion.
All local leagues from AYSO on upto the highest competitive circuit all consistently state that there is zero tolerance for questioning decisions, or challenging the authority of youth referees, whether you agree with that or not. The reality, as opposed to these fictional hypotheticals, is that no coach is going to be sent off if they have a calm, rational, discreet question to a youth referee. But we all know that's not the "problem" being discussed here.