Good article. Some of the points are very similar to those in my book. The calculation thing is a little silly but probaby not that far off.
It's true, the old time bodybuilders were far more sophisticted in their training and no, under today's conditions they wouldn't look an better. They might look worse. Todays gyms are lacking some of the best equiptment ever used -- curved benches, roman chairs, standing inclne boards,sissy squaters, old style hacks, vertical leg presses, etc, etc , etc.
He's also right about supplements. I'm not against them though. In fact, I take lots of supplements, but for health reasons. Not a single one of them will add an ounce of muscle.