Then this topic doesn't really affect you so I don't know why you're so happy about it. Unless you later decided you didn't want to pay for plus, not to say that making the decision up to the developer isn't a good thing for Sony to do, it is. But I'm assuming the majority of people playing these games will have PS+. So it's really not that big of a deal.
I'm happy because it makes good business sense. Something that always bothered me about live was the fact that netflix is behind a paywall. Plus, not everyone is gonna have psn Plus, so it's good that they can still play some games online.