You might notice that the question in the paper took as a given that the boy would be very humiliated and demeaned. The answers were given with that presumption.
And I hope you know kids better than to judge the effect of a punishment based on their reactions. A kid who shows humiliation upon punishment usually is not the one regularly getting punished. The kid who’s a discipline issue will usually either act defiant, or just act cool with the whole thing – what’s going on inside, or how it will effect his outlook towards his rebbeim in general, is another story.