I am not in doubt about these statistics, but the perceived reality is far from what Google is trying to suggest. From my personal experience G+ is still a ghost town (as far as seeing activity from my friends).
I think the general consensus I'm getting is that Google+ isn't necessarily a place for you to connect with your friends. I use it primarily to connect with people I don't know that share common interests. I suspect many others do the same.
My own experience is the same. Our facebook page has over 2000 likes, our twitter feed has about 360 followers, but we only have 19 people following us on google+ (even though we've been on there for a year, post all the same things on google+ and promote our g+ page as much if not more than the others).
On a personal note none of my friends uses google+ (only my wife). They pretty much all use facebook.