In a way he is. I have always been under the impression it was power that kills you. I think that is what he was trying to say. His comparisons boiled down to joules, and that is a power measurement.
The amp chart and damage caused was probably based on 110v mains voltage. If the voltage potential was a high tension line (250,000 volts) and you had a 10ma current flowing through your body, that would generate 2,500 watts. It would cook you like a hot dog.