I think he is right on with all his points. I have trained on "programs" that had me benching three times a week and squatting up to five and ones where I benched and squatted once. High frequency is tougher to program and requires more of an experienced lifter or a coach that knows when to call it a day. Lower frequency is easier to program but I didnt see the immediate strength bump that I saw from higher frequency.
I think the biggest point is that both work. There are examples of successful guys that train both ways. I think it needs to fit the individual lifters lifestyle and enthusiasm level.