Did they do something about this ?
As is said in the article, posts from people who added you but you didn’t add won’t show up in your stream but you can get to them easily if you want to.
There are ways to improve this. At the moment you can only display one circle at a time. It would be nice if you could select more than one circle at once. Also, Google+ defaults to showing you all circles when you load it up and there is no way to change that. It might be nice to be able to only display posts from people in certain circles by default.
But I think that’s some fairly capable filtering, at least if you manage your circles right.
Also important: Google is really good at sifting through a big mass of information presenting you the relevant stuff. This in itself is enough that they have an edge in my opinion.
And no there isn't any good way to do that, yet.