You are correct. The .357magnum has the best street record of one shot stops of all the calibers this guy mentions. But remember, It's the 125 grain hollow point fired from a 6inch barrel that has this explosive power. I don't know why he only talks about these heavier loads that aren't very good for self defense. The 9mm also has a great record, but only if you use 115grain +p hollow points (Hydra shocks are an excellent choice). The 9mm loads he talks about are just too heavy and slow to be considered great.
Got 2, Taurus 689 6in blued with hogue grips
and Ruger Blackhawk Stainless 4 5/8