There's a lot more to it - particularly when you look at the roadmap for where Wordpress and Buddypress are headed.
Yes, I did read the post. Haven't had to try to use it (because of a colleague's specification of WordPress for one site for one of my organizations), I'm not convinced that WordPress is built on the right base of fundamental design choices to meet those needs. In other words, I think WordPress is a kluge. A different webmaster of another website I am closely familiar with uses completely different tools to do what WordPress supposedly does, and finds his site much easier to run as an administrator and much easier for contributing users as co-authors.
I think that largely depends on how you have it set up, and how much of a coder you are. It's definitely geared to be a nice compromise for folks that are jacks of all trades and masters of none. It appeals to the coder and the writer in me, since I split my time between the two.