[Shank]

This makes the assumption that Google's goal with Google+ is just to syndicate content, something that clearly isn't the case. They want content created specifically for Google+ - if they wanted a firehose of data they certainly had the capability and time to allow third-parties to put data into the stream.

Whether or not Google's goal is to create a social network or get more users is up for debate, but this certainly wasn't simply overlooked.

[Yhippa]

I'm thinking you're on the right path. Instead of just adding passive feeds to Google+ and you clicking through I imagine that Google wants content creators to sign up for Google+ accounts and either create content there or post it there.

[okrasz]

This is true that they could push content. Though, there is a slight difference - a user subscribes or wants a given content. Obviously they want it to be created there, but it could help in transition of some users ... like me.