I totally agree. Ephesians 6:4 says "fathers, provoke not your children to wrath: but bring them up in the nurture and admonition of the Lord." If this guy really whipped the boy for just dropping a ball, I'd say that is provoking to wrath.
Beautiful scripture. Sadly many of us were not brought up such. Happily, God uses this hateful world to squeeze us to a realization of our bankruptcy and need of Him.