That is in reference to the changing from internal sharing to Google+ sharing in October 2011, not shutting down Google Reader. I understand that Google prefers

That is in reference to the changing from internal sharing to Google+ sharing in October 2011, not shutting down Google Reader. I understand that Google prefers their users to use Google+ over Reader, but I still don't see how shutting down Reader = more Google+ users, even from Google's perspective. If anything, they are removing a service that could have driven Google+ sharing.