The point made is that real-time feedback is extremely useful, unless the real-time event is catastrophic; then predictive analysis and response is necessary to avert the catastrophe (a car accident, a network or power outage, etc.). But that predictive analysis and response is the result of real-time feedback, plus local analytics and response capabilities. So - they weren't saying that real-time feedback was useless - its extremely useful. It's just that its better when augmented by local, predictive analytics and response.