Breathless headlines like this are usually a sign that everything is fine. If the journos start saying you should mortgage your house and buy {tulips, dotcom stocks, bitcoin}, then that would be a sign that the market is peaking.
The real fallacy in this headline is the idea that any measure of how well the world is doing, financially, could have at any time recently been adequate.
Yup - poverty has been dropping worldwide over the last 30 years and billions have been lifted out of poverty. These are the good times.