Content providers centralized because centralized attention is more valuable than aggregation of decentralized attention in an ad driven economy.
Just because you want RSS to make a come back doesn't mean it has any chance of coming back unless it makes sense economically. And I don't see any of that mentioned in this article, nor am I aware of one that's guaranteed to work as good as ad driven model.
You might as well say it's a perfect time for the renaissance of steam engines.