That's a fascinating article, and you may be right that little more need be said, but the author wanders WAY off the subject when he gets to the benefits of Java. Claiming that you can use the time saved by having garbage collection to make your program more efficient in other ways does not make a convincing argument when you're discussing fine points of performance.

In case that wasn't clear, he claims not that garbage collection is more efficient, but the saved programmer time can be used in some hand-waving way to improve efficiency. Likewise he wanders off into wooly territory with the claim that very large Java programs can be written more quickly. These would be perfectly fine if he were posting the reasons he thinks Java is better, but in a technical discussion of all-out performance it's just offtopic.