I don't think Jim ever really made beer that way but had to figure out a way to promote homebrewing as CHEAP and easy. If he advocated using a chiller, it's not cheap anymore. If he spashed the whole pot onto the ice in one shot, he probably anticipated the die hard brewers would give him a sh!tstorm of HSA criticism.
Jeebus, if that's how you make good beer mine should be world class. Did anyone notice the bucket looked like it had dirt on it? Mabey he's trying to teach how to make crappy beer so more people will buy Sam.