“The things that go behind pay walls, we will not let Google search to, but the things that are outside the pay wall we probably will, because we want the traffic”
As in they want you to pay for the content but still get ad revenue from non-paying customers.
I'm all for paid news sites really, it's unreasonable to expect serious journalism to survive on ad revenue alone and the business model has pretty much proven that at this point.
That said I don't see how de-registering from Google would matter, assuming you have a paid subscription you'd have to log in with a username and password and even if you could get the link from Google you'd still be denied the actual content.
Or are they expecting to set up a "secret" URL that only paid subscribers would know of? Yeah, that'd work great - no risk of circulation there. /sarcasm