Why is Zhuge Liang not a divine operator?

Zhuge Liang skillfully used the east wind to burn Cao Cao's camp. In fact, he is not an Oracle, but skillfully uses the weather forecast used by modern people. Zhuge Liang predicted that there will be strong winds in the southeast in late autumn and early winter 1 1 month, which conforms to the law of weather evolution. The weather in Chibi 165438+ October is just as Zhuge Liang expected. A few days later, there was a big storm on the Yangtze River, and the strong east wind blew to the north shore, burning Chibi and crushing Cao Jun.