Programming in C which isn't "object oriented" is very similar to say, Java. You make the same architectural diagrams on a whiteboard for both. So I agree with the author.
Java is a deeply flawed object oriented language. You agree with the author because, correctly, you are experiencing that Java barely supports object oriented programming. Not that there is no such thing.
[edit: Why the downvotes? I'm not saying java is bad - just that it isn't a strong representation of object orientation. If you take Java as the examplar of object orientation, then you will reasonably conclude that Object Orientation is a weak concept.]
