They've been willfully ignorant to the numbers for some time. What is to say they aren't misinterpreting the data, fudging it, or ingoring factors like "more houses" or "more energy usage" while the number of people are dropping? This kind of thing goes on all the time here in Beijing, the only reliable way to determine vacancy is to count the lights that come on at night. All the other metrics, including energy consumption, are so gamed that they are useless.