Yep. But I think people fail to realize that Ronnie ate that EVERY DAY. He ordered the same meal, at the same time, every day. The staff knew him and gave him the same food, cooked the same way, with the same nutritional profile. The average gym rat sees Ronnie eating at a restaurant and will think, "well hell, i can go to Outback 1 night, then McDonalds another and so on." Nope. Consistency is the key in any diet. Whether you are eating out or cooking food yourself, eating the same food the same way and being consistent with it will give you results.
People also forget that Ronnie had an enormous amount of muscle mass that would quickly burn through those calories, plus an insanely high training frequency / intensity to let him get away with it. And let's not forget the genetic study done on him that showed he had basically ever favorable gene variation for bodybuilding. Even the most advanced of us here couldn't get away with eating like that consistently.