You are missing the point. For whatever reason, he wants things simple when it comes to photography. He doesn't want to spend more time or money on HDR, GPS, video, etc. He wants to take pictures. He doesn't want to have to reconfigure buttons or deal with multiple menus. The most informative video I've watched on photography is Jay Maisel's walk through NYC with Scott Kelby. I would say he echoes almost all of Rockwell's essential photography points. He doesn't want to change lenses, carry a tripod, use photoshop, or even crop the images. This is the type of pro Rockwell refers to. He explicitly does mention that wedding photographers use the 24-70. When he's talking about pros he's talking about people like Maisel and Gursky. Whether you like it or not, you're not going to see a Trey Ratcliffe print in the Met. You aren't going to see one by your favorite wedding photographer either.
And Rockwell is without a doubt the least biased site on the web. He reviews things honestly and like a photographer. If I had read his review of the Sony A55 before I read David Pogue's, I would have saved a lot of money. Most of these magazines and websites sugarcoat everything. Read about how upset he was at the D800. Just as upset as the Canon 5D III. His point about switching camera brands based on megapixels was spot on. I would say the only thing he doesn't get is sports photography, which he readily admits. If you don't know much about art theory and composition, his site is invaluable.