At 48:25 of Part One, Jackson made this statement "Even in ancient times God did not have in mind for children to be beaten up in a bad way."
As WT and JWs often rely on technicalities, stating 'beaten up' could be considered differently than corporal punishment, while intended to mislead. Likewise the 'in a bad way' statement.
The WT promote shunning as a loving provision, not the harsh, unloving, cruel action as we now see it to be. The use of physical discipline is considered as good for the child, not as a bad action.
As each court witness must swear to tell the truth, the whole truth and nothing but the truth, any untruth or misleading testimony, regardless of reason, would be considered by the court to be perjury.